CVE-2026-52718

Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion

State: Published
Severity: 6.5 Medium
Published: Jun 15, 2026
Updated: Jul 30, 2026
Reserved: Jun 8, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	redhat

Weaknesses

CWE-617 Reachable Assertion

Affected Products

Product	Versions
Red Hat Enterprise Linux 10Red Hat	0:1.26.7-2.el10_2.4 and laterNot affected
Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat	0:1.24.11-3.el10_0.4 and laterNot affected
Red Hat Enterprise Linux 9Red Hat	0:1.22.12-7.el9_8.1 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat	0:1.18.4-9.el9_2.3 and laterNot affected
Red Hat Enterprise Linux 9.4 Update Services for SAP SolutionsRed Hat	0:1.22.1-6.el9_4.4 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat	0:1.22.12-5.el9_6.4 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 7Red Hat
Red Hat Enterprise Linux 8Red Hat

References

RHSA-2026:36749vendor-advisory
RHSA-2026:36834vendor-advisory
RHSA-2026:47069vendor-advisory
RHSA-2026:47070vendor-advisory
RHSA-2026:47071vendor-advisory
RHSA-2026:47717vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-52718vdb-entry
RHBZ#2486328issue-tracking
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5103

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.