CVE-2026-52718

medium

Description

A denial of service vulnerability was found in GStreamer's AV1 codec parser in gst-plugins-bad. The gst_av1_parser_parse_tile_list_obu() function passes a byte count to a bit-reader API that expects a bit count, causing parser desynchronization. A remote attacker could trick a user into opening a specially crafted AV1 media file, triggering an assertion abort and causing the application to crash.

References

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5103

https://bugzilla.redhat.com/show_bug.cgi?id=2486328

https://access.redhat.com/security/cve/CVE-2026-52718

Details

Source: Mitre, NVD

Published: 2026-06-15

Updated: 2026-06-15

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 6.5

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

Severity: Medium

EPSS

EPSS: 0.00307