TI-2026-69650 Aliases CVE-2026-107677 GHSA-23w5-87r9-849m

Infinite loop in FFmpeg DASH demuxer on empty SegmentTemplate media

LOW 25CWE-835Published 2026-10-08 · Updated 2026-10-08

Key facts

Attack vector: Local
Privileges required: None
User interaction: Passive
Attack complexity: High
Attack requirements: Present
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Deferred Red Hat: fix deferred

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-835.

Summary

FFmpeg through 9.0.2 contains a denial of service flaw in its DASH demuxer. A loop with an unreachable exit condition (CWE-835) runs forever when a SegmentTemplate media value is empty. A local attacker can make a user open a crafted .mpd manifest, which makes FFmpeg consume CPU indefinitely.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

FFmpeg through 9.0.2 contains a denial of service vulnerability in the DASH demuxer that allows attackers to trigger an infinite loop by supplying an empty SegmentTemplate media URL. Attackers can craft an .mpd manifest declaring SegmentTemplate media="" so get_current_fragment() calls av_strireplace() with an empty search string, consuming CPU indefinitely.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00137 3rd percentileScored 2026-11-07

Fix Deferred Red Hat: fix deferred

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
FFmpeg	FFmpeg	up to 9.0.2	—	No fix listed	CNA

FFmpeg VendorFFmpeg Affected up to 9.0.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:ffmpeg:ffmpeg::::::::	up to 9.0.2	Vulnerable	FFmpeg

cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* Versions up to 9.0.2 Vulnerable ·FFmpeg

Remediation

The sources list no fixed version for FFmpeg. Red Hat lists Red Hat Enterprise Linux AI (RHEL AI) 3 and Red Hat OpenShift AI (RHOAI) as affected with no plan available.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux AI (RHEL AI) 3	Affected	No fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)	Affected	No fix yet: Fix deferred

Timeline

2026-10-08 Threatist record created from CVE-2026-107677
2026-10-09 Alias added: GHSA-23w5-87r9-849m
2026-10-09 Affected versions changed · Red Hat
2026-10-09 CVSS score added · Red Hat

References

Patch 2

Other 3

TI-2025-19015 FFmpeg git-master before commit d5873b was discovered to contain a memory leak in the component libavutil/iamf.c. CVSS 3.1HIGH 8.8
TI-2024-21238 FFmpeg 7.0 contains a heap-buffer-overflow at libavfilter/vf_tiltandshift.c:189:5 in copy_column. CVSS 3.1HIGH 8.4
TI-2023-06050 Ffmpeg: null pointer dereference in ffmpeg hls parsing CVSS 3.1HIGH 7.5
TI-2023-28420 Buffer Overflow vulnerability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to… CVSS 3.1HIGH 8.0
TI-2023-27357 FFmpeg v.n6.1-3-g466799d4f5 allows a heap-based buffer overflow via the… CVSS 3.1HIGH 8.0
TI-2023-27044 Buffer Overflow vulnerability in FFmpeg version n6.1-3-g466799d4f5, allows a local… CVSS 3.1HIGH 8.0

See all 514 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences