Skip to main content
CVE-2026-120210VulnerabilityPublished Updated

Libav: FFmpeg 5.0 through 9.0.2 contains a path traversal vulnerability in the IMF demuxer that allows attackers to

Affects libavSource GCVE Database

0
Compare
Authoritative record:CVE-2026-120210· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium.

Data as of 5 Nov 2026, 12:48 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (VulnCheck)CVSS 4.05.3
CNA (VulnCheck)CVSS 3.14.3
CNACVSS 4.05.3
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

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 31 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10ffmpegpkg:deb/ubuntu/ffmpeg?arch=source&distro=stonkingOther threatsAffected
  • =7:8.0.1-3ubuntu2
  • =7:8.1-3ubuntu3
  • =7:8.1.2-2ubuntu2
Fixed in–
Ubuntu Pro 26.04 LTSffmpegpkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/resoluteOther threatsAffected
  • 7:7.1.1-1ubuntu4 – 7:8.0.1-3ubuntu2+esm5
11 affected builds
Fixed in–
Ubuntu Pro 24.04 LTSffmpegpkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/nobleOther threatsAffected
  • 7:6.0-6ubuntu1 – 7:6.1.1-3ubuntu5+esm15
22 affected builds
Fixed in–
Ubuntu Pro 22.04 LTSffmpegpkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/jammyOther threatsAffected
  • 7:4.4-6ubuntu5 – 7:4.4.2-0ubuntu0.22.04.1+esm17
24 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSffmpegpkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/focalOther threatsAffected
  • 7:4.1.4-1build2 – 7:4.2.7-0ubuntu0.1+esm18
26 affected builds
Fixed in–
Ubuntu Pro 18.04 LTSffmpegpkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps/bionicOther threatsAffected
  • 7:3.3.4-2 – 7:3.4.11-0ubuntu0.1+esm16
30 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Until a fix is available, avoid processing untrusted IMF packages or apply any vendor-recommended mitigations once published.

Description

FFmpeg versions 5.0 through 9.0.2 contain a path traversal vulnerability in the IMF demuxer. This flaw allows attackers to open files outside the intended package by using crafted ASSETMAP Path elements with '..' or absolute paths. Exploitation can lead to unauthorized reading of local MXF files, probing file existence and size, or triggering server-side requests.

References

Community reviews

Loading reviews…