Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-52718
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 · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.007 · change: +0.003
Affected products
- Red Hat Enterprise Linux 10 — versions 0:1.26.7-2.el10_2.4
- Red Hat Enterprise Linux 10.0 Extended Update Support — versions 0:1.24.11-3.el10_0.4
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9 — versions 0:1.22.12-7.el9_8.1
- Red Hat Enterprise Linux 9.2 Update Services For SAP Solutions — versions 0:1.18.4-9.el9_2.3
- Red Hat Enterprise Linux 9.4 Update Services For SAP Solutions — versions 0:1.22.1-6.el9_4.4
- Red Hat Enterprise Linux 9.6 Extended Update Support — versions 0:1.22.12-5.el9_6.4
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-52718 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5103
- access.redhat.com/errata/RHSA-2026:36749 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:36834 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:47069 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:47070 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:47071 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:47717 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-52718?
- CVE-2026-52718 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-06-15.
- How severe is CVE-2026-52718?
- Medium severity. CVSS v3 base score is 6.5 out of 10.