Vulnerability DatabaseCVE-2026-120210
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CVE-2026-120210
Published:October 31, 2026
Updated:November 04, 2026
FFmpeg 5.0 through 9.0.2 contains a path traversal vulnerability in the IMF demuxer that allows attackers to open files outside the package via unvalidated ASSETMAP Path elements. Attackers can supply a crafted IMF package with '..' or absolute paths to demux local MXF files, probe file existence and size, or trigger server-side requests.
Related Resources (7)
https://code.ffmpeg.org/FFmpeg/FFmpeg
https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25341
https://github.com/FFmpeg/FFmpeg
https://nvd.nist.gov/vuln/detail/CVE-2026-120210
https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/imfdec.c#L273
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120210.json
https://www.vulncheck.com/advisories/ffmpeg-5.0-through-9.0.2-path-traversal-via-imf-demuxer-assetmap-path
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory
CWE-22
EPSS
Base Score:
0.28