CVE-2026-107695
mediumFFmpeg before 8.1.3 contains an infinite loop vulnerability in the HLS demuxer that allows remote attackers to cause denial of service because parse_playlist()…
Vendor / product: Ffmpeg — ffmpeg
FFmpeg before 8.1.3 contains an infinite loop vulnerability in the HLS demuxer that allows remote attackers to cause denial of service because parse_playlist() accepts Master Playlist tags inside Media Playlists. Attackers can trick victims into opening a crafted self-referencing playlist that endlessly adds variants in hls_read_header(), causing unbounded CPU and I/O consumption.
CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (disclosure@vulncheck.com)
Timeline (UTC)
Published: 2026-10-08 18:17
Modified: 2026-10-14 23:54
NVD status: Analyzed
Last synced 2 days ago
Verified against the source API 2026-10-27 06:58 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
ffmpeg / ffmpeg <8.1.3
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23618
Patch / mitigation: https://gist.github.com/OxBat/59574a2940092cda1b6e76bbf96f53d0
Patch / mitigation: https://github.com/FFmpeg/FFmpeg/commit/0e6eef35517a
Patch / mitigation: https://github.com/FFmpeg/FFmpeg/commit/a4ddaba8bb78
Patch / mitigation: https://github.com/FFmpeg/FFmpeg/commit/c364ab176f722bdabc886845e770c9eacbc1e3e5
References
- https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23618 disclosure@vulncheck.com
- https://gist.github.com/OxBat/59574a2940092cda1b6e76bbf96f53d0 disclosure@vulncheck.com
- https://github.com/FFmpeg/FFmpeg disclosure@vulncheck.com
- https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L866 disclosure@vulncheck.com
- https://github.com/FFmpeg/FFmpeg/commit/0e6eef35517a disclosure@vulncheck.com
- https://github.com/FFmpeg/FFmpeg/commit/a4ddaba8bb78 disclosure@vulncheck.com
- https://github.com/FFmpeg/FFmpeg/commit/c364ab176f722bdabc886845e770c9eacbc1e3e5 disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-hls-demuxer-infinite-loop-via-sel... disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:58 UTC · record ↗