PT-2026-141049
CVE-2026-125221
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Published
2026-11-09
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Updated
2026-11-09
Description by
CVSS 3.1
5.5
MediumMetricsAV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
FFmpeg through 9.0.2 contains an uncontrolled recursion vulnerability in score header() in libavcodec/flac parser.c that allows attackers to exhaust the thread stack via crafted FLAC input. Attackers can supply a FLAC stream packed with many small valid-looking frame headers, forcing deep recursion that crashes the process during demuxing or parsing.
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