HIGH 7.5

PYSEC-2026-3451

Details

Pillow is a Python imaging library. Prior to 12.3.0, Pillow public image coordinate APIs can trigger a native heap out-of-bounds write when given coordinates near the signed 32-bit integer limits in Image.paste(), Image.crop(), or Image.alpha_composite(). This issue is fixed in version 12.3.0.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI / pillow

Introduced in: 0 Fixed in: 12.3.0

Fix pip install --upgrade 'pillow>=12.3.0'

References

https://github.com/python-pillow/Pillow/releases/tag/12.3.0 [ADVISORY]
https://github.com/python-pillow/Pillow/commit/ceefc348eb3c3844c7f9796ef2cc3a7dd5fbba7b [FIX]
https://github.com/python-pillow/Pillow/pull/9703 [FIX]
https://github.com/python-pillow/Pillow/security/advisories/GHSA-6r8x-57c9-28j4 [EVIDENCE]