CVE-2026-59199

NameCVE-2026-59199
DescriptionPillow is a Python imaging library. Prior to 12.3.0, Pillow public image coordinate APIs can trigger a native heap out-of-bounds write when given coordinates near the signed 32-bit integer limits in Image.paste(), Image.crop(), or Image.alpha_composite(). 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-6r8x-57c9-28j4
https://github.com/python-pillow/Pillow/pull/9703
Fixed by: https://github.com/python-pillow/Pillow/commit/ceefc348eb3c3844c7f9796ef2cc3a7dd5fbba7b (12.3.0)

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