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.
CVE-2026-107695
MEDIUMPre-NVD 6.56.5—Trending — 4 sources updated this week
EchelonGraph scoreHIGH confidence
Score 6.5 from GitHub Security Advisory (severity: HIGH) published 2026-10-08. A secondary CVSS source baseline 6.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.5Exploit: None knownExposed services: Not assessed
An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.
- CVSS v3
- 6.5
- EG Score
- 6.5MEDIUMhigh confidence
- EG Risk
- 34EG Risk 34/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity65% × 45%Exploitation0% × 40%Automatability30% × 15%CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release. - EPSS PROB
- 0.4%
- EPSS %ILE
- 36th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).
An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high until it ships, then apply the release.
Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
October 8, 2026
Last Modified
October 8, 2026
Advisory Details (8)
Auto-updated Oct 8, 2026Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic
FFmpeg before 8.1.3 HLS Demuxer Infinite Loop via Self-Referencing Playlist | Advisories | VulnCheck
https://www.vulncheck.com/advisories/ffmpeg-before-8.1.3-hls-demuxer-infinite-loop-via-self-referencing-playlistgeneric
GitHub - FFmpeg/FFmpeg: Mirror of https://git.ffmpeg.org/ffmpeg.git · GitHub
https://github.com/FFmpeg/FFmpeggeneric
FFmpeg-HLS-Infinite-Loop_DoS_Self-Referencing-Playlist.md · GitHub
https://gist.github.com/OxBat/59574a2940092cda1b6e76bbf96f53d0generic
FFmpeg/libavformat/hls.c at n8.1.2 · FFmpeg/FFmpeg · GitHub
https://github.com/FFmpeg/FFmpeg/blob/n8.1.2/libavformat/hls.c#L866generic
#23618 - avformat/hls: reject Master Playlist tags in a Media Playlist - FFmpeg/FFmpeg - FFmpeg Forgejo
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23618github_commit
commit a4ddaba8bb78 (FFmpeg/FFmpeg)
Fix landed in FFmpeg/FFmpeg commit a4ddaba8bb78 — awaiting tagged release
https://github.com/FFmpeg/FFmpeg/commit/a4ddaba8bb78github_commit
commit 0e6eef35517a (FFmpeg/FFmpeg)
Fix landed in FFmpeg/FFmpeg commit 0e6eef35517a — awaiting tagged release
https://github.com/FFmpeg/FFmpeg/commit/0e6eef35517agithub_commit
commit c364ab176f72 (FFmpeg/FFmpeg)
Fix landed in FFmpeg/FFmpeg commit c364ab176f72 — awaiting tagged release
https://github.com/FFmpeg/FFmpeg/commit/c364ab176f722bdabc886845e770c9eacbc1e3e5Vendor Advisories for CVE-2026-107695(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-10-09 21:03 UTCEG score recompute
- 2026-10-09 21:03 UTCGHSA enrichment
- 2026-10-09 20:06 UTCEPSS rescore
- 2026-10-08 21:16 UTCGHSA enrichment
- 2026-10-08 18:36 UTCEG score recompute
- 2026-10-08 18:36 UTCGHSA enrichment
- 2026-10-08 17:47 UTCEG score recompute
- 2026-10-08 17:44 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2026-107695?
CVE-2026-107695 is a medium vulnerability published on October 8, 2026. FFmpeg before 8.1.3 contains an infinite loop vulnerability in the HLS demuxer that allows remote attackers to cause denial of service because parseplaylist() accepts Master Playlist tags inside Media Playlists. Attackers can trick victims into opening a crafted self-referencing playlist that…
When was CVE-2026-107695 disclosed?
CVE-2026-107695 was first published on October 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-107695 actively exploited?
CVE-2026-107695 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-107695?
CVE-2026-107695 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-107695?
An upstream fix for CVE-2026-107695 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-107695 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-107695
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