CVE-2026-90816: FFmpeg Duration hlsproto.c parse_playlist denial of service

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-14 · updated 2026-09-15
Weakness: CWE-404

Description

A vulnerability was found in FFmpeg 8.0.x. This affects the function parse_playlist of the file libavformat/hlsproto.c of the component Duration Parser. Performing a manipulation of the argument duration/target_duration results in denial of service. The attack is possible to be carried out remotely. Upgrading to version 8.1 and 9.0 is able to mitigate this issue. The patch is named 64fafd63f0b4. Upgrading the affected component is recommended.

Affected products

FFmpeg: 8.0.*

References

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/64fafd63f0b4
https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21492
https://ffmpeg.org/
https://vuldb.com/cve/CVE-2026-90816
https://vuldb.com/submit/922626
https://vuldb.com/vuln/403318
https://vuldb.com/vuln/403318/cti
https://code.ffmpeg.org/FFmpeg/FFmpeg/issues/21492

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