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.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://github.com/python-pillow/Pillow/commit/ceefc348eb3c3844c7f9796ef2cc3a7dd5fbba7b Patch
- https://github.com/python-pillow/Pillow/pull/9703 Exploit, Issue Tracking, Patch
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-6r8x-57c9-28j4 Exploit, Vendor Advisory
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-6r8x-57c9-28j4 Exploit, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · pythonNVD modified 2026-10-24 21:10
Affected (CPE criteria) 1
cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*
References 5
- https://github.com/python-pillow/Pillow/commit/ceefc348eb3c3844c7f9796ef2cc3a7dd5fbba7b Patch
- https://github.com/python-pillow/Pillow/pull/9703 Exploit, Issue Tracking, Patch
- https://github.com/python-pillow/Pillow/releases/tag/12.3.0 Release Notes
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-6r8x-57c9-28j4 Exploit, Vendor Advisory
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-6r8x-57c9-28j4 Exploit, Vendor Advisory