CVE-2026-59205
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Jul 14, 2026
Vendor
unknown
Description
Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0.
References
- https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721
- https://github.com/python-pillow/Pillow/pull/9715
- https://github.com/python-pillow/Pillow/releases/tag/12.3.0
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6
- https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6