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FFmpeg before 8.1.3 HLS Demuxer Infinite Loop via Self-Referencing Playlist

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-107695

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-107695

FFmpeg

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://code.ffmpeg.org/FFmpeg/FFmpeg",
    "vendor": "FFmpeg",
    "product": "FFmpeg",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "8.1.3",
        "versionType": "semver"
      }
    ],
    "packageURL": "pkg:github/ffmpeg/ffmpeg",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-107695

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#21326 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement