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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Ffmpeg
  • Ffmpeg

Configuration 1 [-]

cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://github.com/FFmpeg/FFmpeg cve-icon cve-icon cve-icon
https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L834 cve-icon cve-icon cve-icon
https://github.com/FFmpeg/FFmpeg/commit/01044d04536e cve-icon cve-icon cve-icon
https://github.com/FFmpeg/FFmpeg/commit/191715f0232c cve-icon cve-icon cve-icon
https://github.com/FFmpeg/FFmpeg/commit/23602df9cd1b485c45ba6f533d3b85569de3f323 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-107697 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-107697 cve-icon
https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-hls-demuxer-security-check-bypass-via-parse-playlist cve-icon cve-icon cve-icon
History

Wed, 14 Oct 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 09 Oct 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-641
References
Metrics threat_severity

None

 threat_severity

Moderate

Thu, 08 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Description 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.
Title FFmpeg before 8.1.3 HLS Demuxer Security Check Bypass via parse_playlist()
First Time appeared Ffmpeg
Ffmpeg ffmpeg
Weaknesses CWE-693
CPEs cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Vendors & Products Ffmpeg
Ffmpeg ffmpeg
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-10-08T17:30:28.094Z

Updated: 2026-10-14T16:05:52.089Z

Reserved: 2026-10-08T16:51:40.180Z

Link: CVE-2026-107697

cve-icon Vulnrichment

Updated: 2026-10-14T14:53:31.343Z

cve-icon NVD

Status : Analyzed

Published: 2026-10-08T18:17:26.300

Modified: 2026-10-15T00:01:45.480

Link: CVE-2026-107697

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-08T17:30:28Z

Links: CVE-2026-107697 - Bugzilla