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CVE-2026-52718

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

Published: Jun 15, 2026Updated: Jun 15, 2026 Sources: CVE List
NVD MITRE
6.5CVSS
MEDIUM

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High

Weaknesses

CWE-617Reachable Assertion

Affected Products

Red Hat Enterprise Linux 10
Red Hat
Operating Systems / linux-distro
Red Hat Enterprise Linux 6
Red Hat
Operating Systems / linux-distro
Red Hat Enterprise Linux 7
Red Hat
Operating Systems / linux-distro
Red Hat Enterprise Linux 8
Red Hat
Operating Systems / linux-distro
Red Hat Enterprise Linux 9
Red Hat
Operating Systems / linux-distro
red hatcommercialUSOperating Systemsaka red hat

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Workaround Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://access.redhat.com/security/cve/CVE-2026-52718
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2486328
bugzilla.redhat.com
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5103
gitlab.freedesktop.org

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