Pillow 8.1.1 includes a fix for CVE-2021-25293: There is an out-of-bounds read in SGIRleDecode.c.
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

In libImaging/Jpeg2KDecode.c in Pillow before 7.1.0, there are multiple out-of-bounds reads via a crafted JP2 file.

Pillow 10.0.1 updates its C dependency 'libwebp' to 1.3.2 to include a fix for a high-risk vulnerability.
https://pillow.readthedocs.io/en/stable/releasenotes/10.0.1.html

Pillow 9.0.0 ensures JpegImagePlugin stops at the end of a truncated file to avoid Denial of Service attacks.
https://github.com/python-pillow/Pillow/pull/5921
https://github.com/advisories/GHSA-4fx9-vc88-q2xc

Pillow 9.0.0 excludes carriage return in PDF regex to help prevent ReDoS.
https://github.com/python-pillow/Pillow/pull/5912
https://github.com/python-pillow/Pillow/commit/43b800d933c996226e4d7df00c33fcbe46d97363

Pillow before 9.0.1 allows attackers to delete files because spaces in temporary pathnames are mishandled.

Pillow 8.1.1 includes a fix for CVE-2021-25292: The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

Pillow 8.1.1 includes a fix for CVE-2021-25290: In TiffDecode.c, there is a negative-offset memcpy with an invalid size.
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

An issue was discovered in Pillow before 8.2.0. PSDImagePlugin.PsdImageFile lacked a sanity check on the number of input layers relative to the size of the data block. This could lead to a DoS on Image.open prior to Image.load.

libImaging/SgiRleDecode.c in Pillow before 6.2.2 has an SGI buffer overflow.

Pillow 8.2.0 includes a fix for CVE-2021-25288: There is an out-of-bounds read in J2kDecode, in j2ku_gray_i.
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-25287-cve-2021-25288-fix-oob-read-in-jpeg2kdecode

Pillow before 9.2.0 performs Improper Handling of Highly Compressed GIF Data (Data Amplification).

There is a DoS vulnerability in Pillow before 6.2.2 caused by FpxImagePlugin.py calling the range function on an unvalidated 32-bit integer if the number of bands is large. On Windows running 32-bit Python, this results in an OverflowError or MemoryError due to the 2 GB limit. However, on Linux running 64-bit Python this results in the process being terminated by the OOM killer.

Pillow 8.1.0 fixes TIFF OOB Write error. CVE-2020-35654 #5175.

Pillow 8.1.0 includes a fix for SGI Decode buffer overrun. CVE-2020-35655 #5173.

In Pillow before 7.1.0, there are two Buffer Overflows in libImaging/TiffDecode.c.

Pillow 8.1.1 includes a fix for CVE-2021-25291: In TiffDecode.c, there is an out-of-bounds read in TiffreadRGBATile via invalid tile boundaries.
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICO container, and thus an attempted memory allocation can be very large.

Pillow is potentially vulnerable to DoS attacks through PIL.ImageFont.ImageFont.getmask(). A decompression bomb check has also been added to the affected function.

Pillow 8.1.1 includes a fix for CVE-2021-27922: Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for an ICNS container, and thus an attempted memory allocation can be very large.
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

Pillow version 8.2.0 includes a fix for CVE-2021-28678: For BLP data, BlpImagePlugin did not properly check that reads (after jumping to file offsets) returned data. This could lead to a DoS where the decoder could be run a large number of times on empty data.
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
https://github.com/python-pillow/Pillow/pull/5377
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28678-fix-blp-dos

Pillow 8.0.1 updates 'FreeType' used in binary wheels to v2.10.4 to include a security fix.

In libImaging/SgiRleDecode.c in Pillow through 7.0.0, a number of out-of-bounds reads exist in the parsing of SGI image files, a different issue than CVE-2020-5311.

In libImaging/PcxDecode.c in Pillow before 7.1.0, an out-of-bounds read can occur when reading PCX files where state->shuffle is instructed to read beyond state->buffer.

Pillow before 7.1.0 has multiple out-of-bounds reads in libImaging/FliDecode.c.

Pillow version 8.2.0 includes a fix for CVE-2021-28677: For EPS data, the readline implementation used in EPSImageFile has to deal with any combination of \r and \n as line endings. It used an accidentally quadratic method of accumulating lines while looking for a line ending. A malicious EPS file could use this to perform a DoS of Pillow in the open phase, before an image was accepted for opening.
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
https://github.com/python-pillow/Pillow/pull/5377
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28677-fix-eps-dos-on-open

Pillow 9.0.0 includes a fix for CVE-2022-22815: path_getbbox in path.c in Pillow before 9.0.0 improperly initializes ImagePath.Path.
https://pillow.readthedocs.io/en/stable/releasenotes/9.0.0.html#fixed-imagepath-path-array-handling

Pillow 6.2.0 includes a fix for CVE-2019-16865: An issue was discovered in Pillow before 6.2.0. When reading specially crafted invalid image files, the library can either allocate very large amounts of memory or take an extremely long period of time to process the image.

Pillow 9.0.1 includes a fix for CVE-2022-22817: PIL.ImageMath.eval in Pillow before 9.0.0 allows evaluation of arbitrary expressions, such as ones that use the Python exec method. A first patch was issued for version 9.0.0 but it did not prevent builtins available to lambda expressions.
https://pillow.readthedocs.io/en/stable/releasenotes/9.0.1.html#security

Pillow 8.1.1 includes a fix for CVE-2021-27921: Pillow before 8.1.1 allows attackers to cause a denial of service (memory consumption) because the reported size of a contained image is not properly checked for a BLP container, and thus an attempted memory allocation can be very large.
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

In Pillow before 8.1.0, PcxDecode has a buffer over-read when decoding a crafted PCX file because the user-supplied stride value is trusted for buffer calculations.

libImaging/PcxDecode.c in Pillow before 6.2.2 has a PCX P mode buffer overflow.

Pillow version 8.2.0 includes a fix for CVE-2021-28676: For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
https://github.com/python-pillow/Pillow/pull/5377
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos

Pillow 8.2.0 includes a fix for CVE-2021-25287: There is an out-of-bounds read in J2kDecode, in j2ku_graya_la.
https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-25287-cve-2021-25288-fix-oob-read-in-jpeg2kdecode

Pillow 9.0.0 includes a fix for CVE-2022-22816: path_getbbox in path.c in Pillow before 9.0.0 has a buffer over-read during initialization of ImagePath.Path.
https://pillow.readthedocs.io/en/stable/releasenotes/9.0.0.html#fixed-imagepath-path-array-handling

Pillow 8.3.0 includes a fix for CVE-2021-34552: Pillow through 8.2.0 and PIL (also known as Python Imaging Library) through 1.1.7 allow an attacker to pass controlled parameters directly into a convert function to trigger a buffer overflow in Convert.c
https://pillow.readthedocs.io/en/stable/releasenotes/8.3.0.html#buffer-overflow
https://pillow.readthedocs.io/en/stable/releasenotes/index.html

Pillow 10.3.0 introduces a security update addressing CVE-2024-28219 by replacing certain functions with strncpy to prevent buffer overflow issues.

Pillow is affected by an arbitrary code execution vulnerability. If an attacker has control over the keys passed to the environment argument of PIL.ImageMath.eval(), they may be able to execute arbitrary code.
https://pillow.readthedocs.io/en/stable/releasenotes/10.2.0.html

Pillow 10.0.0 includes a fix for CVE-2023-44271: Denial of Service that uncontrollably allocates memory to process a given task, potentially causing a service to crash by having it run out of memory. This occurs for truetype in ImageFont when textlength in an ImageDraw instance operates on a long text argument.
https://github.com/python-pillow/Pillow/pull/7244

Pillow 8.1.1 includes a fix for CVE-2021-25289: TiffDecode has a heap-based buffer overflow when decoding crafted YCbCr files because of certain interpretation conflicts with LibTIFF in RGBA mode. NOTE: this issue exists because of an incomplete fix for CVE-2020-35654.
https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html

Pillow from 5.2.0 and before 8.3.2 is vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.
https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b
https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html

libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.

libImaging/TiffDecode.c in Pillow before 6.2.2 has a TIFF decoding integer overflow, related to realloc.