MEDIUM 5.3 NVD
CVE-2026-107697
FFmpeg before 8.1.3 contains a protection mechanism failure in the HLS demuxer that allows attackers to bypass protocol and allowed_extensions restrictions when
FFmpeg before 8.1.3 contains a protection mechanism failure in the HLS demuxer that allows attackers to bypass protocol and allowed_extensions restrictions when opening child playlists. Attackers can supply a crafted master playlist whose child playlists use disallowed protocols or non-multimedia local files, making parse_playlist() open resources the HLS security policy should block.
References
- https://github.com/FFmpeg/FFmpeg
- https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L834
- https://github.com/FFmpeg/FFmpeg/commit/01044d04536e
- https://github.com/FFmpeg/FFmpeg/commit/191715f0232c
- https://github.com/FFmpeg/FFmpeg/commit/23602df9cd1b485c45ba6f533d3b85569de3f323
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-10-08 via NVD.
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