Skip to content
OpenAdvisories
Medium · 4.3 CVE-2026-12891 EUVD-2026-38606GHSA-9j3r-2vv4-g5x8

Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad: global buffer overflow (oob read) in h.266/vvc vui parameter parser

Published Jun 23, 2026 · Updated Nov 5, 2026 · Assigned by redhat

Description

A flaw was found in the GStreamer gst-plugins-bad package. When processing a malformed H.266/VVC video stream with a crafted aspect ratio indicator value, the H.266 parser performs an out-of-bounds read of up to 8 bytes from adjacent memory. This flaw allows an attacker to craft a malicious H.266 video file or stream that, when processed by a GStreamer-based application, could leak limited memory contents through video metadata, potentially exposing sensitive information from the application's address space.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Enterprise Linux 10 — —
Red Hat Red Hat Enterprise Linux 8 — —
Red Hat Red Hat Enterprise Linux 9 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 gst-plugins-bad1.0 1.28.5-1 —
Debian 13 gst-plugins-bad1.0 1.26.2-3+deb13u3 —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 gst-plugins-bad1.0 No fix yet —
Ubuntu 26.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu 25.10 gst-plugins-bad1.0 No fix yet —
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 22.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 20.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 18.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 16.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 14.04 LTS gst-plugins-bad1.0 No fix yet —
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 gstreamer-plugins-bad 1.26.7-160000.3.1 SUSE-SU-2026:22817-1
SLES 16.0 gstreamer-plugins-bad 1.26.7-160000.3.1 SUSE-SU-2026:22817-1
SLE Micro 6.2 gstreamer-plugins-bad 1.26.7-160000.3.1 SUSE-SU-2026:22752-1
ReleasePackageFixed inAdvisory
openSUSE Leap 16.0 gstreamer-plugins-bad 1.26.7-160000.3.1 openSUSE-SU-2026:21370-1

Advisories 4

References