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.
Published: 2026-06-15
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.

Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-6362-1 gst-plugins-bad1.0 security update
History

Fri, 26 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Gstreamer Project
Gstreamer Project gstreamer Plugin
Vendors & Products Gstreamer Project
Gstreamer Project gstreamer Plugin

Tue, 16 Jun 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 16 Jun 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 15 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
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.
Title Gstreamer1-plugins-bad-free: gstreamer: denial of service via av1 tile_list_obu parser byte/bit confusion
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-617
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


Subscriptions

Gstreamer Project Gstreamer Plugin
Redhat Enterprise Linux
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-06-16T15:03:24.401Z

Reserved: 2026-06-08T11:07:26.008Z

Link: CVE-2026-52718

cve-icon Vulnrichment

Updated: 2026-06-16T15:03:19.532Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-06-15T20:16:32.317

Modified: 2026-06-15T21:09:52.020

Link: CVE-2026-52718

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-06-15T00:00:00Z

Links: CVE-2026-52718 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-06-26T09:45:44Z

Weaknesses