CVE-2026-120210

MediumCVSS 4.3/10Last modified Nov 5, 2026

Description

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.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-22

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

Vendor	Product	Versions
FFmpeg	FFmpeg	>= 5.0, <= 9.0.2

References

Timeline

Published: Oct 31, 2026
Last modified: Nov 5, 2026
NVD status: Awaiting Analysis

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