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TI-2026-69647 Aliases CVE-2026-107660GHSA-r4c5-645c-gfxv

FFmpeg skips TLS hostname checks for IP-address hosts

Priority LOW 27CWE-297Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

FFmpeg before 8.1.3 and 9.x before 9.0.2 skips certificate hostname checks for IP-address hosts in tls_open() of libavformat/tls_mbedtls.c, a case of CWE-297. A network attacker holding any certificate issued by a trusted CA can intercept https, rtmps, or tls connections to IP-literal URLs and read and tamper with the streams.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

FFmpeg before 8.1.3 and 9.x before 9.0.2 contains an improper certificate validation vulnerability in tls_open() of libavformat/tls_mbedtls.c, which skips hostname checks for IP-address hosts. Network attackers can intercept https, rtmps, or tls connections to IP-literal URLs with any trusted CA-issued certificate to read and tamper with streams.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00136 3rd percentileScored 2026-11-07
Fix Partial FFmpeg (FFmpeg): 8.1.3, 9.0.2Red Hat: 2 without a fix

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

VendorProductAffected versionsFixed inStatusSource
FFmpegFFmpegbefore 8.1.3; 9.0 to before 9.0.28.1.3, 9.0.2Patch availableCNA
  • FFmpeg VendorFFmpeg Affected before 8.1.3; 9.0 to before 9.0.2 Fixed in 8.1.3, 9.0.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*before 8.1.3; 9.0 to before 9.0.2VulnerableFFmpeg
  • cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:* Versions before 8.1.3; 9.0 to before 9.0.2 Vulnerable ·FFmpeg

Remediation

Upgrade FFmpeg to 8.1.3 or 9.0.2. Red Hat rates this Moderate and 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 · 2026-10-29

  • Fix · CNA FFmpeg (FFmpeg) Fixed in 8.1.3, 9.0.2

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-08 Threatist record created from CVE-2026-107660
  2. 2026-10-09 Alias added: GHSA-r4c5-645c-gfxv
  3. 2026-10-09 Affected versions changed · Red Hat
  4. 2026-10-09 CVSS score added · Red Hat

References

Patch 4

Other 2

  • 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