CVE-2026-59205

EUVD-2026-43746
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
pythonpillow
𝑥
< 12.3.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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