CVE-2026-8461 — Heap out-of-bounds write via odd slice_height in FFmpeg MagicYUV decoder

Affected: FFmpeg, Red Hat Enterprise Linux AI 3.5 for RHEL 9, Red Hat AI Inference Server, Red Hat Enterprise Linux AI (RHEL AI) 3, Red Hat OpenShift AI (RHOAI)

An out-of-bounds write vulnerability in FFmpeg's libavcodec library, specifically in the MagicYUV decoder, allows denial-of-service and, in some cases, can be exploited for remote code execution.

This vulnerability is associated with the file libavcodec/magicyuv.C.

This issue affects FFmpeg before version 8.1.2.

USN-8750-1 — ffmpeg vulnerabilities

Affected: Ubuntu:Pro:20.04:LTS: ffmpeg, Ubuntu:Pro:22.04:LTS: ffmpeg

Seung Min Shin discovered that FFmpeg did not correctly handle certain memory operations. If a user or automated system were tricked into opening a specially crafted file, an attacker could cause a denial of service. (CVE-2026-12706)

Xinghang Lv discovered that FFmpeg did not correctly handle certain memory operations. If a user or automated system were tricked into opening a specially crafted file, an attacker could cause a denial of service. (CVE-2026-30999)

It was discovered that FFmpeg did not correctly handle certain memory operations. If a user or automated system were tricked into opening a specially crafted file, an attacker could cause a denial of service. (CVE-2026-58049)

Adrian Junge discovered that FFmpeg did not correctly handle certain memory operations. If a user or automated system were tricked into opening a specially crafted file, an attacker could leak sensitive information. (CVE-2026-70629, CVE-2026-70630, CVE-2026-70631)

Ori Hollander discovered that FFmpeg did not correctly handle certain memory operations. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly cause a denial of service or execute arbitrary code. (CVE-2026-8461)

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CVE-2026-8461 — Heap out-of-bounds write via odd slice_height in FFmpeg MagicYUV decoder

USN-8750-1 — ffmpeg vulnerabilities