CVE-2026-125264FFmpeg through 9.0.2 CPU Exhaustion via JPEG XL Parser TOC Count

Beschreibung

FFmpeg through 9.0.2 contains an uncontrolled resource consumption vulnerability in parse_frame_header() in libavcodec/jpegxl_parser.c that fails to validate TOC entry counts against remaining input. Attackers can supply a crafted JPEG XL frame header with a permuted TOC and huge toc_count, making the parser loop excessively and exhaust CPU.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25569 issue-tracking
• Patch Commit patch
• https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavcodec/jpegxl_parser.c#L1343 technical-description
• https://github.com/FFmpeg/FFmpeg product
• VulnCheck Advisory: FFmpeg through 9.0.2 CPU Exhaustion via JPEG XL Parser TOC Count third-party-advisory