CVE-2026-42311

Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.

Score

CVSS 4.0 8.6 High

Status

Analyzed - security-advisories@github.com

Published

2026-05-09

Last modified

2026-05-12

Weaknesses

CWE-190, CWE-787

Affected products

• Pillow (Python)
• Pillow (Python-pillow)

References

• https://github.com/python-pillow/Pillow/commit/58f9a1d166dcb0c274807d4423522d205b0c35ea
• https://github.com/python-pillow/Pillow/pull/9520
• https://github.com/python-pillow/Pillow/releases/tag/12.2.0
• https://github.com/python-pillow/Pillow/security/advisories/GHSA-pwv6-vv43-88gr