CVE-2026-120210

    Dashboard / Vulnerabilities / CVE-2026-120210

    CVE-2026-120210

    Published: 31 Oct 2026Last Modified: 7 Nov 2026

    Summary: FFmpeg 5.0 through 9.0.2 Path Traversal via IMF Demuxer ASSETMAP Path

    Details: 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.

    References: https://code.ffmpeg.org/FFmpeg/FFmpeg, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/120xxx/CVE-2026-120210.json, https://nvd.nist.gov/vuln/detail/CVE-2026-120210, https://www.vulncheck.com/advisories/ffmpeg-5.0-through-9.0.2-path-traversal-via-imf-demuxer-assetmap-path, https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25341, https://github.com/FFmpeg/FFmpeg, https://github.com/FFmpeg/FFmpeg/blob/n9.0.2/libavformat/imfdec.c#L273

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 390d6853d0ef408007feb39c0040682c81c02751
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High