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Django 2.1.5 has known security vulnerabilities.

Package	Installed	Affected	Info
Django	2.1.5	<2.1.9 , >=2.2a1,<2.2.2	show Django versions 2.1.9 and 2.2.2 include a patched bundled jQuery version to avoid a Prototype Pollution vulnerability.
Django	2.1.5	<4.2.16 , >=5.0a1,<5.0.9 , >=5.1a1,<5.1.1	show A potential denial-of-service vulnerability has been identified in Django's urlize() and urlizetrunc() functions in django.utils.html. This vulnerability can be triggered by inputting huge strings containing a specific sequence of characters.
Django	2.1.5	<2.2.25 , >=3.2a1,<3.2.10 , >=3.1a1,<3.1.14	show Django versions 2.2.25, 3.1.14 and 3.2.10 include a fix for CVE-2021-44420: In Django 2.2 before 2.2.25, 3.1 before 3.1.14, and 3.2 before 3.2.10, HTTP requests for URLs with trailing newlines could bypass upstream access control based on URL paths. https://www.djangoproject.com/weblog/2021/dec/07/security-releases/
Django	2.1.5	>=1.11a1,<1.11.23 , >=2.0a1,<2.1.11 , >=2.2a1,<2.2.4	show Django 1.11.23, 2.1.11 and 2.2.4 includes a fix for CVE-2019-14235: If passed certain inputs, django.utils.encoding.uri_to_iri could lead to significant memory usage due to a recursion when repercent-encoding invalid UTF-8 octet sequences.
Django	2.1.5	<3.2.22 , >=4.0a1,<4.1.12 , >=4.2a1,<4.2.6	show Affected versions of Django are vulnerable to Denial-of-Service via django.utils.text.Truncator. The django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.
Django	2.1.5	>=2.0a1,<2.1.11 , >=2.2a1,<2.2.4 , <1.11.23	show Django 1.11.23, 2.1.11 and 2.2.4 include a fix for CVE-2019-14232: If django.utils.text.Truncator's chars() and words() methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which were thus vulnerable.
Django	2.1.5	<2.2.16 , >=3.0a1,<3.0.10 , >=3.1a1,<3.1.1	show Django 2.2.16, 3.0.10 and 3.1.1 include a fix for CVE-2020-24583: An issue was discovered in Django 2.2 before 2.2.16, 3.0 before 3.0.10, and 3.1 before 3.1.1 (when Python 3.7+ is used). FILE_UPLOAD_DIRECTORY_PERMISSIONS mode was not applied to intermediate-level directories created in the process of uploading files. It was also not applied to intermediate-level collected static directories when using the collectstatic management command. #NOTE: This vulnerability affects only users of Python versions above 3.7. https://www.djangoproject.com/weblog/2020/sep/01/security-releases
Django	2.1.5	>=1.10,<4.2.14 , >=5.0a1,<5.0.7	show Affected versions of Django are affected by a potential denial-of-service vulnerability in the django.utils.html.urlize() function. The urlize and urlizetrunc template filters were susceptible to a denial-of-service attack via certain inputs containing many brackets. An attacker could exploit this vulnerability to cause significant delays or crashes in the affected application.
Django	2.1.5	>=2.0a1,<2.0.11 , <1.11.19 , >=2.1a1,<2.1.6	show Django 1.11.19, 2.0.11 and 2.1.6 include a fix for CVE-2019-6975: Uncontrolled Memory Consumption via a malicious attacker-supplied value to the django.utils.numberformat.format() function.
Django	2.1.5	>=2.1a1,<2.1.15 , >=2.2a1,<2.2.8	show Django 2.1.15 and 2.2.8 includes a fix for CVE-2019-19118: A Django model admin displaying inline related models, where the user has view-only permissions to a parent model but edit permissions to the inline model, would be presented with an editing UI, allowing POST requests, for updating the inline model. Directly editing the view-only parent model was not possible, but the parent model's save() method was called, triggering potential side effects, and causing pre and post-save signal handlers to be invoked. To resolve this, the Django admin is adjusted to require edit permissions on the parent model in order for inline models to be editable.
Django	2.1.5	<3.2.16 , >=4.0a1,<4.0.8 , >=4.1a1,<4.1.2	show In Django 3.2 before 3.2.16, 4.0 before 4.0.8, and 4.1 before 4.1.2, internationalized URLs were subject to a potential denial of service attack via the locale parameter, which is treated as a regular expression.
Django	2.1.5	<2.2.26 , >=3.0a1,<3.2.11 , >=4.0a1,<4.0.1	show Django 2.2.26, 3.2.11 and 4.0.1 include a fix for CVE-2021-45115: UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack. https://www.djangoproject.com/weblog/2022/jan/04/security-releases/
Django	2.1.5	<2.2.26 , >=3.0a1,<3.2.11 , >=4.0a1,<4.0.1	show Django 2.2.26, 3.2.11 and 4.0.1 include a fix for CVE-2021-45116: An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. Due to leveraging the Django Template Language's variable resolution logic, the dictsort template filter was potentially vulnerable to information disclosure, or an unintended method call, if passed a suitably crafted key. https://www.djangoproject.com/weblog/2022/jan/04/security-releases
Django	2.1.5	>=3.2a1,<3.2.4 , >=3.0a1,<3.1.12 , >=1.7,<2.2.24	show Affected versions of the Django package are vulnerable to Path Traversal due to improper validation of file paths in the django.contrib.admindocs module. The `TemplateDetailView` view allows staff members to verify the existence of arbitrary files by manipulating the file path. An attacker with staff privileges can exploit this vulnerability to check for the presence of files outside the template root directories, and if the `admindocs` templates are customized to display file contents, they can also access the contents of these files.
Django	2.1.5	<4.2.15 , >=5.0a1,<5.0.8	show Django has a potential denial-of-service vulnerability in django.utils.html.urlize() and AdminURLFieldWidget. The urlize and urlizetrunc functions, along with AdminURLFieldWidget, are vulnerable to denial-of-service attacks when handling inputs with a very large number of Unicode characters.
Django	2.1.5	<4.2.26 , >=5.1a1,<5.1.14 , >=5.2a1,<5.2.8	show CVE-2025-64459: Affected versions of the Django package are vulnerable to SQL Injection due to improper input validation, allowing the internal _connector keyword argument to be accepted from untrusted dictionaries via expansion. The .filter(), .exclude(), and .get() methods on QuerySet, as well as the Q class, resolve **kwargs and will treat a supplied _connector value as the logical connector without constraining it to the expected set (AND/OR), permitting attacker-controlled tokens to influence SQL predicate construction.
Django	2.1.5	<4.2.21 , >=5.2a1,<5.2.1 , >=5.1.0a1,<5.1.9	show An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags().
Django	2.1.5	<4.2.28 , >=5.2a1,<5.2.11 , >=6.0a1,<6.0.2	show Affected versions of the Django package are vulnerable to Denial of Service (DoS) due to inefficient string concatenation when processing duplicate HTTP headers in ASGI mode. The ASGIRequest class combines repeated headers using repeated string concatenation, resulting in super-linear (quadratic) time complexity when processing requests with many duplicate headers.
Django	2.1.5	<2.2.26 , >=3.0a1,<3.2.11 , >=4.0a1,<4.0.1	show Django 2.2.26, 3.2.11 and 4.0.1 include a fix for CVE-2021-45452: Storage.save in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1 allows directory traversal if crafted filenames are directly passed to it. https://www.djangoproject.com/weblog/2022/jan/04/security-releases/
Django	2.1.5	>=1.11a1,<1.11.23 , >=2.0a1,<2.1.11 , >=2.2a1,<2.2.4	show Django 1.11.23, 2.1.11 and 2.2.4 include a fix for CVE-2019-14234: Due to an error in shallow key transformation, key and index lookups for django.contrib.postgres.fields.JSONField, and key lookups for django.contrib.postgres.fields.HStoreField, were subject to SQL injection. This could, for example, be exploited via crafted use of "OR 1=1" in a key or index name to return all records, using a suitably crafted dictionary, with dictionary expansion, as the **kwargs passed to the QuerySet.filter() function.
Django	2.1.5	>=1.11a1,<1.11.23 , >=2.0a1,<2.1.11 , >=2.2a1,<2.2.4	show Django 1.11.23, 2.1.11, and 2.2.4 include a fix for CVE-2019-14233: Due to the behavior of the underlying HTMLParser, django.utils.html.strip_tags would be extremely slow to evaluate certain inputs containing large sequences of nested incomplete HTML entities.
Django	2.1.5	>=1.11a1,<1.11.28 , >=2.0a1,<2.2.10 , >=3.0a1,<3.0.3	show Django 1.11.28, 2.2.10 and 3.0.3 include a fix for CVE-2020-7471: SQL Injection if untrusted data is used as a StringAgg delimiter (e.g., in Django applications that offer downloads of data as a series of rows with a user-specified column delimiter). By passing a suitably crafted delimiter to a contrib.postgres.aggregates.StringAgg instance, it was possible to break escaping and inject malicious SQL.
Django	2.1.5	<3.2.25 , >=4.0a1,<4.2.11 , >=5.0a1,<5.0.3	show Affected versions of Django are vulnerable to potential regular expression denial-of-service (REDoS). django.utils.text.Truncator.words() method (with html=True) and truncatewords_html template filter were subject to a potential regular expression denial-of-service attack using a suitably crafted string (follow up to CVE-2019-14232 and CVE-2023-43665).
Django	2.1.5	<3.2.23 , >=4.0a1,<4.1.13 , >=4.2a1,<4.2.7	show Django 4.2.7, 4.1.13 and 3.2.23 include a fix for CVE-2023-46695: Potential denial of service vulnerability in UsernameField on Windows. https://www.djangoproject.com/weblog/2023/nov/01/security-releases
Django	2.1.5	>=1.11a1,<4.2.15 , >=5.0a1,<5.0.8	show Affected versions of Django has a potential SQL injection vulnerability in the QuerySet.values() and QuerySet.values_list() methods. When used on models with a JSONField, these methods are susceptible to SQL injection through column aliases if a crafted JSON object key is passed as an argument.
Django	2.1.5	<3.2.21 , >=4.0a1,<4.1.11 , >=4.2a1,<4.2.5	show Affected versions of Django are vulnerable to potential Denial of Service via certain inputs with a very large number of Unicode characters in django.utils.encoding.uri_to_iri().
Django	2.1.5	<2.2.28 , >=3.0a1,<3.2.13 , >=4.0a1,<4.0.4	show Django 2.2.28, 3.2.13 and 4.0.4 include a fix for CVE-2022-28347: A SQL injection issue was discovered in QuerySet.explain() in Django 2.2 before 2.2.28, 3.2 before 3.2.13, and 4.0 before 4.0.4. This occurs by passing a crafted dictionary (with dictionary expansion) as the **options argument, and placing the injection payload in an option name. https://www.djangoproject.com/weblog/2022/apr/11/security-releases
Django	2.1.5	<4.2.27 , >=5.1,<5.1.15 , >=5.2,<5.2.9	show Django fixes a potential denial-of-service vulnerability in XML ``Deserializer``.
Django	2.1.5	<4.2.16 , >=5.0a1,<5.0.9 , >=5.1a1,<5.1.1	show A security vulnerability has been discovered in certain versions of Django, affecting the password reset functionality. The PasswordResetForm class in django.contrib.auth.forms inadvertently allowed attackers to enumerate user email addresses by exploiting unhandled exceptions during the email sending process. This could be done by issuing password reset requests and observing the responses. Django has implemented a fix where these exceptions are now caught and logged using the django.contrib.auth logger, preventing potential information leakage through error responses.
Django	2.1.5	<4.2.28 , >=5.2a1,<5.2.11 , >=6.0a1,<6.0.2	show Affected versions of the Django package are vulnerable to SQL Injection due to improper handling of column aliases containing periods in QuerySet.order_by() when combined with FilteredRelation. The QuerySet.order_by() method fails to properly sanitize column aliases that contain periods when the same alias is used in FilteredRelation via dictionary expansion. https://github.com/django/django/commit/90f5b10784ba5bf369caed87640e2b4394ea3314
Django	2.1.5	>=3.2a1,<3.2.1 , <2.2.21 , >=3.0a1,<3.1.9	show Django 2.2.21, 3.1.9 and 3.2.1 include a fix for CVE-2021-31542: MultiPartParser, UploadedFile, and FieldFile allowed directory traversal via uploaded files with suitably crafted file names. https://www.djangoproject.com/weblog/2021/may/04/security-releases
Django	2.1.5	>=1.1.3,<3.2.24 , >=4.0a1,<4.2.10 , >=5.0a1,<5.0.2	show Affected versions of Django are vulnerable to potential denial-of-service in intcomma template filter when used with very long strings.
Django	2.1.5	<4.2.15 , >=5.0a1,<5.0.8	show Django addresses a memory exhaustion issue in django.utils.numberformat.floatformat(). When floatformat receives a string representation of a number in scientific notation with a large exponent, it could lead to excessive memory consumption. To prevent this, decimals with more than 200 digits are now returned as-is.
Django	2.1.5	>=2.1a1,<3.2.15 , >=4.0a1,<4.0.7 , >=4.1a1,<4.2a1	show Affected versions of the `django` package are vulnerable to Download of Code Without Integrity Check due to improper handling of user-supplied input in the HTTP FileResponse class. The vulnerability arises because the Content-Disposition header of a FileResponse can be set using a filename derived from user input without sufficient validation. An attacker can exploit this by crafting a request that causes a file with malicious content to be downloaded, potentially executing arbitrary code on the client system when the file is opened.
Django	2.1.5	<4.2.24 , >=5.0a1,<5.1.12 , >=5.2a1,<5.2.6	show Affected versions of the Django package are vulnerable to SQL Injection due to insufficient input sanitization in FilteredRelation column aliases. The FilteredRelation class fails to properly validate or escape column alias names when they are provided through dictionary expansion as keyword arguments to QuerySet.annotate() or QuerySet.alias() methods, allowing malicious SQL code to be injected directly into the generated database queries.
Django	2.1.5	<2.2.16 , >=3.0a1,<3.0.10 , >=3.1a1,<3.1.1	show An issue was discovered in Django 2.2 before 2.2.16, 3.0 before 3.0.10, and 3.1 before 3.1.1 (when Python 3.7+ is used). The intermediate-level directories of the filesystem cache had the system's standard umask rather than 0o077.
Django	2.1.5	>=1.11a1,<1.11.21 , >=2.0a1,<2.1.9 , >=2.2a1,<2.2.2	show Django 1.11.21, 2.1.9 and 2.2.2 include a fix for CVE-2019-12308: The clickable Current URL value displayed by the AdminURLFieldWidget displays the provided value without validating it as a safe URL. Thus, a non validated value stored in the database, or a value provided as a URL query parameter payload, could result in an clickable JavaScript link.
Django	2.1.5	>=1.11a1,<1.11.27 , >=2.0a1,<2.2.9 , >=3.0a1,<3.0.1	show Django 1.11.27, 2.2.9 and 3.0.1 include a fix for CVE-2019-19844: Account takeover. A suitably crafted email address (that is equal to an existing user's email address after case transformation of Unicode characters) would allow an attacker to be sent a password reset token for the matched user account. One mitigation in the new releases is to send password reset tokens only to the registered user email address.
Django	2.1.5	>=3.0a1,<3.0.13 , >=3.1a1,<3.1.7 , <2.2.19	show Django versions 2.2.19, 3.0.13 and 3.1.7 include a fix for CVE-2021-23336: Web cache poisoning via 'django.utils.http.limited_parse_qsl()'. Django contains a copy of 'urllib.parse.parse_qsl' which was added to backport some security fixes. A further security fix has been issued recently such that 'parse_qsl(' no longer allows using ';' as a query parameter separator by default.
Django	2.1.5	<2.2.27 , >=3.0a1,<3.2.12 , >=4.0a1,<4.0.2	show Django 2.2.27, 3.2.12 and 4.0.2 include a fix for CVE-2022-23833: Denial-of-service possibility in file uploads. https://www.djangoproject.com/weblog/2022/feb/01/security-releases
Django	2.1.5	<4.2.26 , >=5.1a1,<5.1.14 , >=5.2a1,<5.2.8	show CVE-2025-64458: Affected versions of the Django package are vulnerable to Denial of Service (DoS) due to slow Unicode NFKC normalization on Windows being applied to untrusted inputs. The django.contrib.auth.views.LoginView and django.contrib.auth.views.LogoutView, and django.views.i18n.set_language normalize user-controlled strings using Python’s NFKC algorithm, which is unusually slow on Windows for huge Unicode sequences and can be triggered to consume excessive CPU.
Django	2.1.5	<3.2.18 , >=4.0a1,<4.0.10 , >=4.1a1,<4.1.7	show Django 4.1.7, 4.0.10 and 3.2.18 include a fix for CVE-2023-24580: Potential denial-of-service vulnerability in file uploads. https://www.djangoproject.com/weblog/2023/feb/14/security-releases
Django	2.1.5	<4.2.17 , >=5.0a1,<5.0.10 , >=5.1a1,<5.1.4	show Affected versions of Django are vulnerable to a potential denial-of-service (DoS) attack in the `django.utils.html.strip_tags()` method. The vulnerability occurs when the `strip_tags()` method or the `striptags` template filter processes inputs containing large sequences of nested, incomplete HTML entities.
Django	2.1.5	<4.2.17 , >=5.0a1,<5.0.10 , >=5.1a1,<5.1.4	show Django affected versions are vulnerable to a potential SQL injection in the HasKey(lhs, rhs) lookup on Oracle databases. The vulnerability arises when untrusted data is directly used as the lhs value in the django.db.models.fields.json.HasKey lookup. However, applications using the jsonfield.has_key lookup with the __ syntax remain unaffected by this issue.
Django	2.1.5	>=5.2,<5.2.2 , >=5.0a1,<5.1.10 , <4.2.22	show An issue was discovered in Django 5.2 before 5.2.3, 5.1 before 5.1.11, and 4.2 before 4.2.23. Internal HTTP response logging does not escape request.path, which allows remote attackers to potentially manipulate log output via crafted URLs. This may lead to log injection or forgery when logs are viewed in terminals or processed by external systems.
Django	2.1.5	>=2.0a1,<2.2.18 , >=3.0a1,<3.0.12 , >=3.1a1,<3.1.6	show Django 2.2.18, 3.0.12 and 3.1.6 include a fix for CVE-2021-3281: The django.utils.archive.extract method (used by "startapp --template" and "startproject --template") allows directory traversal via an archive with absolute paths or relative paths with dot segments.
Django	2.1.5	>=4.0a1,<4.1.10 , >=4.2a1,<4.2.3 , <3.2.20	show Affected versions of Django are vulnerable to a potential ReDoS (regular expression denial of service) in EmailValidator and URLValidator via a very large number of domain name labels of emails and URLs.
Django	2.1.5	>=3.0.0a1,<3.1.12 , >=3.2.0a1,<3.2.4 , <2.2.24	show Django 2.2.24, 3.1.12, and 3.2.4 include a fix for CVE-2021-33571: In Django 2.2 before 2.2.24, 3.x before 3.1.12, and 3.2 before 3.2.4, URLValidator, validate_ipv4_address, and validate_ipv46_address do not prohibit leading zero characters in octal literals. This may allow a bypass of access control that is based on IP addresses. (validate_ipv4_address and validate_ipv46_address are unaffected with Python 3.9.5+). https://www.djangoproject.com/weblog/2021/jun/02/security-releases
Django	2.1.5	<3.2.14 , >=4.0a1,<4.0.6	show Django 3.2.14 and 4.0.6 include a fix for CVE-2022-34265: Potential SQL injection via Trunc(kind) and Extract(lookup_name) arguments. https://www.djangoproject.com/weblog/2022/jul/04/security-releases
Django	2.1.5	<2.2.27 , >=3.0a1,<3.2.12 , >=4.0a1,<4.0.2	show The {% debug %} template tag in Django 2.2 before 2.2.27, 3.2 before 3.2.12, and 4.0 before 4.0.2 does not properly encode the current context. This may lead to XSS.
Django	2.1.5	>=1.11a1,<1.11.22 , >=2.2a1,<2.2.3 , >=2.1a1,<2.1.10	show An issue was discovered in Django 1.11 before 1.11.22, 2.1 before 2.1.10, and 2.2 before 2.2.3. An HTTP request is not redirected to HTTPS when the SECURE_PROXY_SSL_HEADER and SECURE_SSL_REDIRECT settings are used, and the proxy connects to Django via HTTPS. In other words, django.http.HttpRequest.scheme has incorrect behavior when a client uses HTTP.
Django	2.1.5	<4.2.14 , >=5.0a1,<5.0.7	show Affected versions of Django are affected by a username enumeration vulnerability caused by timing differences in the django.contrib.auth.backends.ModelBackend.authenticate() method. This method allowed remote attackers to enumerate users through a timing attack involving login requests for users with unusable passwords. The timing difference in the authentication process exposed whether a username was valid or not, potentially aiding attackers in gaining unauthorized access.
Django	2.1.5	<3.2.19 , >=4.0a1,<4.1.9 , >=4.2a1,<4.2.1	show Django 4.2.1, 4.1.9 and 3.2.19 include a fix for CVE-2023-31047: In Django 3.2 before 3.2.19, 4.x before 4.1.9, and 4.2 before 4.2.1, it was possible to bypass validation when using one form field to upload multiple files. This multiple upload has never been supported by forms.FileField or forms.ImageField (only the last uploaded file was validated). However, Django's "Uploading multiple files" documentation suggested otherwise. https://www.djangoproject.com/weblog/2023/may/03/security-releases
Django	2.1.5	<2.2.28 , >=3.0a1,<3.2.13 , >=4.0a1,<4.0.4	show Django 2.2.28, 3.2.13 and 4.0.4 include a fix for CVE-2022-28346: An issue was discovered in Django 2.2 before 2.2.28, 3.2 before 3.2.13, and 4.0 before 4.0.4. QuerySet.annotate(), aggregate(), and extra() methods are subject to SQL injection in column aliases via a crafted dictionary (with dictionary expansion) as the passed **kwargs. https://www.djangoproject.com/weblog/2022/apr/11/security-releases
Django	2.1.5	<3.2.17 , >=4.0a1,<4.0.9 , >=4.1a1,<4.1.6	show Django 3.2.17, 4.0.9 and 4.1.6 includes a fix for CVE-2023-23969: In Django 3.2 before 3.2.17, 4.0 before 4.0.9, and 4.1 before 4.1.6, the parsed values of Accept-Language headers are cached in order to avoid repetitive parsing. This leads to a potential denial-of-service vector via excessive memory usage if the raw value of Accept-Language headers is very large. https://www.djangoproject.com/weblog/2023/feb/01/security-releases
Django	2.1.5	<4.2.27 , >=5.1,<5.1.15 , >=5.2,<5.2.9	show Django fixes potential SQL injection in ``FilteredRelation`` column aliases on PostgreSQL.

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Django 2.1.5 has known security vulnerabilities.

Package	Installed	Affected	Info
Django	2.1.5	<2.1.9 , >=2.2a1,<2.2.2	show Django versions 2.1.9 and 2.2.2 include a patched bundled jQuery version to avoid a Prototype Pollution vulnerability.
Django	2.1.5	<4.2.16 , >=5.0a1,<5.0.9 , >=5.1a1,<5.1.1	show A potential denial-of-service vulnerability has been identified in Django's urlize() and urlizetrunc() functions in django.utils.html. This vulnerability can be triggered by inputting huge strings containing a specific sequence of characters.
Django	2.1.5	<2.2.25 , >=3.2a1,<3.2.10 , >=3.1a1,<3.1.14	show Django versions 2.2.25, 3.1.14 and 3.2.10 include a fix for CVE-2021-44420: In Django 2.2 before 2.2.25, 3.1 before 3.1.14, and 3.2 before 3.2.10, HTTP requests for URLs with trailing newlines could bypass upstream access control based on URL paths. https://www.djangoproject.com/weblog/2021/dec/07/security-releases/
Django	2.1.5	>=1.11a1,<1.11.23 , >=2.0a1,<2.1.11 , >=2.2a1,<2.2.4	show Django 1.11.23, 2.1.11 and 2.2.4 includes a fix for CVE-2019-14235: If passed certain inputs, django.utils.encoding.uri_to_iri could lead to significant memory usage due to a recursion when repercent-encoding invalid UTF-8 octet sequences.
Django	2.1.5	<3.2.22 , >=4.0a1,<4.1.12 , >=4.2a1,<4.2.6	show Affected versions of Django are vulnerable to Denial-of-Service via django.utils.text.Truncator. The django.utils.text.Truncator chars() and words() methods (when used with html=True) are subject to a potential DoS (denial of service) attack via certain inputs with very long, potentially malformed HTML text. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which are thus also vulnerable. NOTE: this issue exists because of an incomplete fix for CVE-2019-14232.
Django	2.1.5	>=2.0a1,<2.1.11 , >=2.2a1,<2.2.4 , <1.11.23	show Django 1.11.23, 2.1.11 and 2.2.4 include a fix for CVE-2019-14232: If django.utils.text.Truncator's chars() and words() methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which were thus vulnerable.
Django	2.1.5	<2.2.16 , >=3.0a1,<3.0.10 , >=3.1a1,<3.1.1	show Django 2.2.16, 3.0.10 and 3.1.1 include a fix for CVE-2020-24583: An issue was discovered in Django 2.2 before 2.2.16, 3.0 before 3.0.10, and 3.1 before 3.1.1 (when Python 3.7+ is used). FILE_UPLOAD_DIRECTORY_PERMISSIONS mode was not applied to intermediate-level directories created in the process of uploading files. It was also not applied to intermediate-level collected static directories when using the collectstatic management command. #NOTE: This vulnerability affects only users of Python versions above 3.7. https://www.djangoproject.com/weblog/2020/sep/01/security-releases
Django	2.1.5	>=1.10,<4.2.14 , >=5.0a1,<5.0.7	show Affected versions of Django are affected by a potential denial-of-service vulnerability in the django.utils.html.urlize() function. The urlize and urlizetrunc template filters were susceptible to a denial-of-service attack via certain inputs containing many brackets. An attacker could exploit this vulnerability to cause significant delays or crashes in the affected application.
Django	2.1.5	>=2.0a1,<2.0.11 , <1.11.19 , >=2.1a1,<2.1.6	show Django 1.11.19, 2.0.11 and 2.1.6 include a fix for CVE-2019-6975: Uncontrolled Memory Consumption via a malicious attacker-supplied value to the django.utils.numberformat.format() function.
Django	2.1.5	>=2.1a1,<2.1.15 , >=2.2a1,<2.2.8	show Django 2.1.15 and 2.2.8 includes a fix for CVE-2019-19118: A Django model admin displaying inline related models, where the user has view-only permissions to a parent model but edit permissions to the inline model, would be presented with an editing UI, allowing POST requests, for updating the inline model. Directly editing the view-only parent model was not possible, but the parent model's save() method was called, triggering potential side effects, and causing pre and post-save signal handlers to be invoked. To resolve this, the Django admin is adjusted to require edit permissions on the parent model in order for inline models to be editable.
Django	2.1.5	<3.2.16 , >=4.0a1,<4.0.8 , >=4.1a1,<4.1.2	show In Django 3.2 before 3.2.16, 4.0 before 4.0.8, and 4.1 before 4.1.2, internationalized URLs were subject to a potential denial of service attack via the locale parameter, which is treated as a regular expression.
Django	2.1.5	<2.2.26 , >=3.0a1,<3.2.11 , >=4.0a1,<4.0.1	show Django 2.2.26, 3.2.11 and 4.0.1 include a fix for CVE-2021-45115: UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack. https://www.djangoproject.com/weblog/2022/jan/04/security-releases/
Django	2.1.5	<2.2.26 , >=3.0a1,<3.2.11 , >=4.0a1,<4.0.1	show Django 2.2.26, 3.2.11 and 4.0.1 include a fix for CVE-2021-45116: An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. Due to leveraging the Django Template Language's variable resolution logic, the dictsort template filter was potentially vulnerable to information disclosure, or an unintended method call, if passed a suitably crafted key. https://www.djangoproject.com/weblog/2022/jan/04/security-releases
Django	2.1.5	>=3.2a1,<3.2.4 , >=3.0a1,<3.1.12 , >=1.7,<2.2.24	show Affected versions of the Django package are vulnerable to Path Traversal due to improper validation of file paths in the django.contrib.admindocs module. The `TemplateDetailView` view allows staff members to verify the existence of arbitrary files by manipulating the file path. An attacker with staff privileges can exploit this vulnerability to check for the presence of files outside the template root directories, and if the `admindocs` templates are customized to display file contents, they can also access the contents of these files.
Django	2.1.5	<4.2.15 , >=5.0a1,<5.0.8	show Django has a potential denial-of-service vulnerability in django.utils.html.urlize() and AdminURLFieldWidget. The urlize and urlizetrunc functions, along with AdminURLFieldWidget, are vulnerable to denial-of-service attacks when handling inputs with a very large number of Unicode characters.
Django	2.1.5	<4.2.26 , >=5.1a1,<5.1.14 , >=5.2a1,<5.2.8	show CVE-2025-64459: Affected versions of the Django package are vulnerable to SQL Injection due to improper input validation, allowing the internal _connector keyword argument to be accepted from untrusted dictionaries via expansion. The .filter(), .exclude(), and .get() methods on QuerySet, as well as the Q class, resolve **kwargs and will treat a supplied _connector value as the logical connector without constraining it to the expected set (AND/OR), permitting attacker-controlled tokens to influence SQL predicate construction.
Django	2.1.5	<4.2.21 , >=5.2a1,<5.2.1 , >=5.1.0a1,<5.1.9	show An issue was discovered in Django 4.2 before 4.2.21, 5.1 before 5.1.9, and 5.2 before 5.2.1. The django.utils.html.strip_tags() function is vulnerable to a potential denial-of-service (slow performance) when processing inputs containing large sequences of incomplete HTML tags. The template filter striptags is also vulnerable, because it is built on top of strip_tags().
Django	2.1.5	<4.2.28 , >=5.2a1,<5.2.11 , >=6.0a1,<6.0.2	show Affected versions of the Django package are vulnerable to Denial of Service (DoS) due to inefficient string concatenation when processing duplicate HTTP headers in ASGI mode. The ASGIRequest class combines repeated headers using repeated string concatenation, resulting in super-linear (quadratic) time complexity when processing requests with many duplicate headers.
Django	2.1.5	<2.2.26 , >=3.0a1,<3.2.11 , >=4.0a1,<4.0.1	show Django 2.2.26, 3.2.11 and 4.0.1 include a fix for CVE-2021-45452: Storage.save in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1 allows directory traversal if crafted filenames are directly passed to it. https://www.djangoproject.com/weblog/2022/jan/04/security-releases/
Django	2.1.5	>=1.11a1,<1.11.23 , >=2.0a1,<2.1.11 , >=2.2a1,<2.2.4	show Django 1.11.23, 2.1.11 and 2.2.4 include a fix for CVE-2019-14234: Due to an error in shallow key transformation, key and index lookups for django.contrib.postgres.fields.JSONField, and key lookups for django.contrib.postgres.fields.HStoreField, were subject to SQL injection. This could, for example, be exploited via crafted use of "OR 1=1" in a key or index name to return all records, using a suitably crafted dictionary, with dictionary expansion, as the **kwargs passed to the QuerySet.filter() function.
Django	2.1.5	>=1.11a1,<1.11.23 , >=2.0a1,<2.1.11 , >=2.2a1,<2.2.4	show Django 1.11.23, 2.1.11, and 2.2.4 include a fix for CVE-2019-14233: Due to the behavior of the underlying HTMLParser, django.utils.html.strip_tags would be extremely slow to evaluate certain inputs containing large sequences of nested incomplete HTML entities.
Django	2.1.5	>=1.11a1,<1.11.28 , >=2.0a1,<2.2.10 , >=3.0a1,<3.0.3	show Django 1.11.28, 2.2.10 and 3.0.3 include a fix for CVE-2020-7471: SQL Injection if untrusted data is used as a StringAgg delimiter (e.g., in Django applications that offer downloads of data as a series of rows with a user-specified column delimiter). By passing a suitably crafted delimiter to a contrib.postgres.aggregates.StringAgg instance, it was possible to break escaping and inject malicious SQL.
Django	2.1.5	<3.2.25 , >=4.0a1,<4.2.11 , >=5.0a1,<5.0.3	show Affected versions of Django are vulnerable to potential regular expression denial-of-service (REDoS). django.utils.text.Truncator.words() method (with html=True) and truncatewords_html template filter were subject to a potential regular expression denial-of-service attack using a suitably crafted string (follow up to CVE-2019-14232 and CVE-2023-43665).
Django	2.1.5	<3.2.23 , >=4.0a1,<4.1.13 , >=4.2a1,<4.2.7	show Django 4.2.7, 4.1.13 and 3.2.23 include a fix for CVE-2023-46695: Potential denial of service vulnerability in UsernameField on Windows. https://www.djangoproject.com/weblog/2023/nov/01/security-releases
Django	2.1.5	>=1.11a1,<4.2.15 , >=5.0a1,<5.0.8	show Affected versions of Django has a potential SQL injection vulnerability in the QuerySet.values() and QuerySet.values_list() methods. When used on models with a JSONField, these methods are susceptible to SQL injection through column aliases if a crafted JSON object key is passed as an argument.
Django	2.1.5	<3.2.21 , >=4.0a1,<4.1.11 , >=4.2a1,<4.2.5	show Affected versions of Django are vulnerable to potential Denial of Service via certain inputs with a very large number of Unicode characters in django.utils.encoding.uri_to_iri().
Django	2.1.5	<2.2.28 , >=3.0a1,<3.2.13 , >=4.0a1,<4.0.4	show Django 2.2.28, 3.2.13 and 4.0.4 include a fix for CVE-2022-28347: A SQL injection issue was discovered in QuerySet.explain() in Django 2.2 before 2.2.28, 3.2 before 3.2.13, and 4.0 before 4.0.4. This occurs by passing a crafted dictionary (with dictionary expansion) as the **options argument, and placing the injection payload in an option name. https://www.djangoproject.com/weblog/2022/apr/11/security-releases
Django	2.1.5	<4.2.27 , >=5.1,<5.1.15 , >=5.2,<5.2.9	show Django fixes a potential denial-of-service vulnerability in XML ``Deserializer``.
Django	2.1.5	<4.2.16 , >=5.0a1,<5.0.9 , >=5.1a1,<5.1.1	show A security vulnerability has been discovered in certain versions of Django, affecting the password reset functionality. The PasswordResetForm class in django.contrib.auth.forms inadvertently allowed attackers to enumerate user email addresses by exploiting unhandled exceptions during the email sending process. This could be done by issuing password reset requests and observing the responses. Django has implemented a fix where these exceptions are now caught and logged using the django.contrib.auth logger, preventing potential information leakage through error responses.
Django	2.1.5	<4.2.28 , >=5.2a1,<5.2.11 , >=6.0a1,<6.0.2	show Affected versions of the Django package are vulnerable to SQL Injection due to improper handling of column aliases containing periods in QuerySet.order_by() when combined with FilteredRelation. The QuerySet.order_by() method fails to properly sanitize column aliases that contain periods when the same alias is used in FilteredRelation via dictionary expansion. https://github.com/django/django/commit/90f5b10784ba5bf369caed87640e2b4394ea3314
Django	2.1.5	>=3.2a1,<3.2.1 , <2.2.21 , >=3.0a1,<3.1.9	show Django 2.2.21, 3.1.9 and 3.2.1 include a fix for CVE-2021-31542: MultiPartParser, UploadedFile, and FieldFile allowed directory traversal via uploaded files with suitably crafted file names. https://www.djangoproject.com/weblog/2021/may/04/security-releases
Django	2.1.5	>=1.1.3,<3.2.24 , >=4.0a1,<4.2.10 , >=5.0a1,<5.0.2	show Affected versions of Django are vulnerable to potential denial-of-service in intcomma template filter when used with very long strings.
Django	2.1.5	<4.2.15 , >=5.0a1,<5.0.8	show Django addresses a memory exhaustion issue in django.utils.numberformat.floatformat(). When floatformat receives a string representation of a number in scientific notation with a large exponent, it could lead to excessive memory consumption. To prevent this, decimals with more than 200 digits are now returned as-is.
Django	2.1.5	>=2.1a1,<3.2.15 , >=4.0a1,<4.0.7 , >=4.1a1,<4.2a1	show Affected versions of the `django` package are vulnerable to Download of Code Without Integrity Check due to improper handling of user-supplied input in the HTTP FileResponse class. The vulnerability arises because the Content-Disposition header of a FileResponse can be set using a filename derived from user input without sufficient validation. An attacker can exploit this by crafting a request that causes a file with malicious content to be downloaded, potentially executing arbitrary code on the client system when the file is opened.
Django	2.1.5	<4.2.24 , >=5.0a1,<5.1.12 , >=5.2a1,<5.2.6	show Affected versions of the Django package are vulnerable to SQL Injection due to insufficient input sanitization in FilteredRelation column aliases. The FilteredRelation class fails to properly validate or escape column alias names when they are provided through dictionary expansion as keyword arguments to QuerySet.annotate() or QuerySet.alias() methods, allowing malicious SQL code to be injected directly into the generated database queries.
Django	2.1.5	<2.2.16 , >=3.0a1,<3.0.10 , >=3.1a1,<3.1.1	show An issue was discovered in Django 2.2 before 2.2.16, 3.0 before 3.0.10, and 3.1 before 3.1.1 (when Python 3.7+ is used). The intermediate-level directories of the filesystem cache had the system's standard umask rather than 0o077.
Django	2.1.5	>=1.11a1,<1.11.21 , >=2.0a1,<2.1.9 , >=2.2a1,<2.2.2	show Django 1.11.21, 2.1.9 and 2.2.2 include a fix for CVE-2019-12308: The clickable Current URL value displayed by the AdminURLFieldWidget displays the provided value without validating it as a safe URL. Thus, a non validated value stored in the database, or a value provided as a URL query parameter payload, could result in an clickable JavaScript link.
Django	2.1.5	>=1.11a1,<1.11.27 , >=2.0a1,<2.2.9 , >=3.0a1,<3.0.1	show Django 1.11.27, 2.2.9 and 3.0.1 include a fix for CVE-2019-19844: Account takeover. A suitably crafted email address (that is equal to an existing user's email address after case transformation of Unicode characters) would allow an attacker to be sent a password reset token for the matched user account. One mitigation in the new releases is to send password reset tokens only to the registered user email address.
Django	2.1.5	>=3.0a1,<3.0.13 , >=3.1a1,<3.1.7 , <2.2.19	show Django versions 2.2.19, 3.0.13 and 3.1.7 include a fix for CVE-2021-23336: Web cache poisoning via 'django.utils.http.limited_parse_qsl()'. Django contains a copy of 'urllib.parse.parse_qsl' which was added to backport some security fixes. A further security fix has been issued recently such that 'parse_qsl(' no longer allows using ';' as a query parameter separator by default.
Django	2.1.5	<2.2.27 , >=3.0a1,<3.2.12 , >=4.0a1,<4.0.2	show Django 2.2.27, 3.2.12 and 4.0.2 include a fix for CVE-2022-23833: Denial-of-service possibility in file uploads. https://www.djangoproject.com/weblog/2022/feb/01/security-releases
Django	2.1.5	<4.2.26 , >=5.1a1,<5.1.14 , >=5.2a1,<5.2.8	show CVE-2025-64458: Affected versions of the Django package are vulnerable to Denial of Service (DoS) due to slow Unicode NFKC normalization on Windows being applied to untrusted inputs. The django.contrib.auth.views.LoginView and django.contrib.auth.views.LogoutView, and django.views.i18n.set_language normalize user-controlled strings using Python’s NFKC algorithm, which is unusually slow on Windows for huge Unicode sequences and can be triggered to consume excessive CPU.
Django	2.1.5	<3.2.18 , >=4.0a1,<4.0.10 , >=4.1a1,<4.1.7	show Django 4.1.7, 4.0.10 and 3.2.18 include a fix for CVE-2023-24580: Potential denial-of-service vulnerability in file uploads. https://www.djangoproject.com/weblog/2023/feb/14/security-releases
Django	2.1.5	<4.2.17 , >=5.0a1,<5.0.10 , >=5.1a1,<5.1.4	show Affected versions of Django are vulnerable to a potential denial-of-service (DoS) attack in the `django.utils.html.strip_tags()` method. The vulnerability occurs when the `strip_tags()` method or the `striptags` template filter processes inputs containing large sequences of nested, incomplete HTML entities.
Django	2.1.5	<4.2.17 , >=5.0a1,<5.0.10 , >=5.1a1,<5.1.4	show Django affected versions are vulnerable to a potential SQL injection in the HasKey(lhs, rhs) lookup on Oracle databases. The vulnerability arises when untrusted data is directly used as the lhs value in the django.db.models.fields.json.HasKey lookup. However, applications using the jsonfield.has_key lookup with the __ syntax remain unaffected by this issue.
Django	2.1.5	>=5.2,<5.2.2 , >=5.0a1,<5.1.10 , <4.2.22	show An issue was discovered in Django 5.2 before 5.2.3, 5.1 before 5.1.11, and 4.2 before 4.2.23. Internal HTTP response logging does not escape request.path, which allows remote attackers to potentially manipulate log output via crafted URLs. This may lead to log injection or forgery when logs are viewed in terminals or processed by external systems.
Django	2.1.5	>=2.0a1,<2.2.18 , >=3.0a1,<3.0.12 , >=3.1a1,<3.1.6	show Django 2.2.18, 3.0.12 and 3.1.6 include a fix for CVE-2021-3281: The django.utils.archive.extract method (used by "startapp --template" and "startproject --template") allows directory traversal via an archive with absolute paths or relative paths with dot segments.
Django	2.1.5	>=4.0a1,<4.1.10 , >=4.2a1,<4.2.3 , <3.2.20	show Affected versions of Django are vulnerable to a potential ReDoS (regular expression denial of service) in EmailValidator and URLValidator via a very large number of domain name labels of emails and URLs.
Django	2.1.5	>=3.0.0a1,<3.1.12 , >=3.2.0a1,<3.2.4 , <2.2.24	show Django 2.2.24, 3.1.12, and 3.2.4 include a fix for CVE-2021-33571: In Django 2.2 before 2.2.24, 3.x before 3.1.12, and 3.2 before 3.2.4, URLValidator, validate_ipv4_address, and validate_ipv46_address do not prohibit leading zero characters in octal literals. This may allow a bypass of access control that is based on IP addresses. (validate_ipv4_address and validate_ipv46_address are unaffected with Python 3.9.5+). https://www.djangoproject.com/weblog/2021/jun/02/security-releases
Django	2.1.5	<3.2.14 , >=4.0a1,<4.0.6	show Django 3.2.14 and 4.0.6 include a fix for CVE-2022-34265: Potential SQL injection via Trunc(kind) and Extract(lookup_name) arguments. https://www.djangoproject.com/weblog/2022/jul/04/security-releases
Django	2.1.5	<2.2.27 , >=3.0a1,<3.2.12 , >=4.0a1,<4.0.2	show The {% debug %} template tag in Django 2.2 before 2.2.27, 3.2 before 3.2.12, and 4.0 before 4.0.2 does not properly encode the current context. This may lead to XSS.
Django	2.1.5	>=1.11a1,<1.11.22 , >=2.2a1,<2.2.3 , >=2.1a1,<2.1.10	show An issue was discovered in Django 1.11 before 1.11.22, 2.1 before 2.1.10, and 2.2 before 2.2.3. An HTTP request is not redirected to HTTPS when the SECURE_PROXY_SSL_HEADER and SECURE_SSL_REDIRECT settings are used, and the proxy connects to Django via HTTPS. In other words, django.http.HttpRequest.scheme has incorrect behavior when a client uses HTTP.
Django	2.1.5	<4.2.14 , >=5.0a1,<5.0.7	show Affected versions of Django are affected by a username enumeration vulnerability caused by timing differences in the django.contrib.auth.backends.ModelBackend.authenticate() method. This method allowed remote attackers to enumerate users through a timing attack involving login requests for users with unusable passwords. The timing difference in the authentication process exposed whether a username was valid or not, potentially aiding attackers in gaining unauthorized access.
Django	2.1.5	<3.2.19 , >=4.0a1,<4.1.9 , >=4.2a1,<4.2.1	show Django 4.2.1, 4.1.9 and 3.2.19 include a fix for CVE-2023-31047: In Django 3.2 before 3.2.19, 4.x before 4.1.9, and 4.2 before 4.2.1, it was possible to bypass validation when using one form field to upload multiple files. This multiple upload has never been supported by forms.FileField or forms.ImageField (only the last uploaded file was validated). However, Django's "Uploading multiple files" documentation suggested otherwise. https://www.djangoproject.com/weblog/2023/may/03/security-releases
Django	2.1.5	<2.2.28 , >=3.0a1,<3.2.13 , >=4.0a1,<4.0.4	show Django 2.2.28, 3.2.13 and 4.0.4 include a fix for CVE-2022-28346: An issue was discovered in Django 2.2 before 2.2.28, 3.2 before 3.2.13, and 4.0 before 4.0.4. QuerySet.annotate(), aggregate(), and extra() methods are subject to SQL injection in column aliases via a crafted dictionary (with dictionary expansion) as the passed **kwargs. https://www.djangoproject.com/weblog/2022/apr/11/security-releases
Django	2.1.5	<3.2.17 , >=4.0a1,<4.0.9 , >=4.1a1,<4.1.6	show Django 3.2.17, 4.0.9 and 4.1.6 includes a fix for CVE-2023-23969: In Django 3.2 before 3.2.17, 4.0 before 4.0.9, and 4.1 before 4.1.6, the parsed values of Accept-Language headers are cached in order to avoid repetitive parsing. This leads to a potential denial-of-service vector via excessive memory usage if the raw value of Accept-Language headers is very large. https://www.djangoproject.com/weblog/2023/feb/01/security-releases
Django	2.1.5	<4.2.27 , >=5.1,<5.1.15 , >=5.2,<5.2.9	show Django fixes potential SQL injection in ``FilteredRelation`` column aliases on PostgreSQL.