CVE-2026-59205

NameCVE-2026-59205
DescriptionPillow 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pillow (PTS)bullseye8.1.2+dfsg-0.3+deb11u2vulnerable
bullseye (security)8.1.2+dfsg-0.3+deb11u3vulnerable
bookworm, bookworm (security)9.4.0-1.1+deb12u1vulnerable
trixie11.1.0-5+deb13u4vulnerable
trixie (security)11.1.0-5+deb13u3vulnerable
forky, sid12.2.0-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pillowsource(unstable)(unfixed)

Notes

https://github.com/python-pillow/Pillow/security/advisories/GHSA-9hw9-ch79-4vh6
https://github.com/python-pillow/Pillow/pull/9715
Fixed by: https://github.com/python-pillow/Pillow/commit/a9ffc42bedf4fc0a7ef8d6486e7f9e81e3397721 (12.3.0)

Search for package or bug name: Reporting problems