CVE-2026-38346

NameCVE-2026-38346
DescriptionAn integer overflow in the yuv2planeX_8_c() function (libswscale/output.c) of FFmpeg N-122528-gdd2976b9e1 allows attackers to cause a Denial of Service (DoS) via supplying a crafted video file.
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)
ReferencesDSA-6268-1, DSA-6276-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
ffmpeg (PTS)bullseye7:4.3.7-0+deb11u1vulnerable
bullseye (security)7:4.3.9-0+deb11u2vulnerable
bookworm, bookworm (security)7:5.1.9-0+deb12u1fixed
trixie (security), trixie7:7.1.5-0+deb13u1fixed
forky, sid7:8.1.2-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ffmpegsourcebookworm7:5.1.9-0+deb12u1DSA-6276-1
ffmpegsourcetrixie7:7.1.4-0+deb13u1DSA-6268-1
ffmpegsource(unstable)7:8.1-1

Notes

https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21584
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22365
Fixed by: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/a59180022af5447d8b2847f539fb99c859175e95 (n8.1)
Fixed by: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9c34cb7c4912eb52ba151a9aa9c7b541a56bed5b (n7.1.4)
Fixed by: https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/2075332a56441f4390bf08438cdbbc53540542cb (n5.1.9)

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