Medium 6.5Published Jun 15, 2026

CVE-2026-52718Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion

Updated under an hour ago (Oct 28, 2026, 7:30 PM ET)

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It affects Red Hat Enterprise Linux 10 and 3 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-617
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: redhat
NVD analysis: Awaiting Analysis
Record last updated: Jul 30, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	from 0:1.26.7-2.el10_2.4 not affected	CNA record
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus	from 0:1.24.11-3.el10_0.4 not affected	CNA record
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions redhat:rhel_e4s	from 0:1.18.4-9.el9_2.3 not affected	CNA record
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus	from 0:1.22.12-5.el9_6.4 not affected	CNA record

References

References

https://access.redhat.com/errata/RHSA-2026:36749	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:36834	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:47069	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:47070	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:47071	vendor-advisory, x-refsource-redhat
https://access.redhat.com/errata/RHSA-2026:47717	vendor-advisory, x-refsource-redhat
https://access.redhat.com/security/cve/CVE-2026-52718	vdb-entry, x-refsource-redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2486328	issue-tracking, x-refsource-redhat
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5103

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.