CVE-2023-6601

Ffmpeg: hls unsafe file extension bypass in ffmpeg

State: Published
Severity: 4.7 Medium
Published: Jan 6, 2025
Updated: Nov 3, 2025
Reserved: Dec 8, 2023

Description

A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions.

Scores

CVSS	Score	Vector	Source
3.1	4.7 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N	fedora
3.1	4.7 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N	CISA-ADP

Weaknesses

CWE-99 Improper Control of Resource Identifiers ('Resource Injection')
CWE-94 Improper Control of Generation of Code ('Code Injection')

Affected Products

Product	Versions
FFmpeg	2.0 to before 6.*Affected

References

RHBZ#2253172issue-tracking
https://lists.debian.org/debian-lts-announce/2025/07/msg00004.html

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