python-pillow/pillow · Security
Pillow affected by out-of-bounds write when loading PSD images
- GHSA ID
- GHSA-cfh3-3jmp-rvhc
- CVE ID
- CVE-2026-25990
- Severity
- high
- Published
- Updated
- CVSS v4
- 8.6 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
Impact
An out-of-bounds write may be triggered when loading a specially crafted PSD image. Pillow >= 10.3.0 users are affected.
Patches
Pillow 12.1.1 will be released shortly with a fix for this.
Workarounds
Image.open() has a formats parameter that can be used to prevent PSD images from being opened.
References
Pillow 12.1.1 will add release notes at https://pillow.readthedocs.io/en/stable/releasenotes/index.html
CWEs
- CWE-787 · Out-of-bounds Write
References
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-cfh3-3jmp-rvhc ↗
- https://github.com/python-pillow/Pillow/pull/9427 ↗
- https://github.com/python-pillow/Pillow/commit/54ba4db542ad3c7b918812a4e2d69c27735a3199 ↗
- https://pillow.readthedocs.io/en/stable/releasenotes/12.1.1.html ↗
- https://nvd.nist.gov/vuln/detail/CVE-2026-25990 ↗
- https://github.com/python-pillow/Pillow/commit/9000313cc5d4a31bdcdd6d7f0781101abab553aa ↗
- https://github.com/advisories/GHSA-cfh3-3jmp-rvhc ↗