High severity7.8NVD Advisory· Published Mar 16, 2026· Updated Jul 21, 2026
CVE-2026-2920
CVE-2026-2920
Description
GStreamer ASF Demuxer Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the processing of stream headers within ASF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28843.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
18- osv-coords14 versionspkg:rpm/almalinux/gstreamer1-plugins-bad-freepkg:rpm/almalinux/gstreamer1-plugins-bad-free-develpkg:rpm/almalinux/gstreamer1-plugins-bad-free-libspkg:rpm/almalinux/gstreamer1-plugins-basepkg:rpm/almalinux/gstreamer1-plugins-base-develpkg:rpm/almalinux/gstreamer1-plugins-base-toolspkg:rpm/almalinux/gstreamer1-plugins-goodpkg:rpm/almalinux/gstreamer1-plugins-good-gtkpkg:rpm/almalinux/gstreamer1-plugins-ugly-freepkg:rpm/opensuse/gstreamer-plugins-ugly&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/gstreamer-plugins-ugly&distro=openSUSE%20Leap%2016.0pkg:rpm/suse/gstreamer-plugins-ugly&distro=SUSE%20Linux%20Enterprise%20Server%2016.0pkg:rpm/suse/gstreamer-plugins-ugly&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0pkg:rpm/suse/gstreamer-plugins-ugly&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP7
< 1.26.7-2.el10_2+ 13 more
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.26.7-2.el10_2
- (no CPE)range: < 1.24.0-150600.3.5.1
- (no CPE)range: < 1.26.7-160000.2.1
- (no CPE)range: < 1.26.7-160000.2.1
- (no CPE)range: < 1.26.7-160000.2.1
- (no CPE)range: < 1.24.0-150600.3.5.1
Patches
Vulnerability mechanics
References
12- gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/37d7991168a223d0810fd1f4493ec6a8b6a510d3nvdPatchVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-26-164/nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2026:19024nvd
- access.redhat.com/errata/RHSA-2026:19180nvd
- access.redhat.com/errata/RHSA-2026:6259nvd
- access.redhat.com/errata/RHSA-2026:6300nvd
- access.redhat.com/errata/RHSA-2026:6750nvd
- access.redhat.com/errata/RHSA-2026:8854nvd
- access.redhat.com/errata/RHSA-2026:8862nvd
- access.redhat.com/security/cve/CVE-2026-2920nvd
- bugzilla.redhat.com/show_bug.cginvd
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2920.jsonnvd
News mentions
1- ZDI-26-164: GStreamer ASF Demuxer Heap-based Buffer Overflow Remote Code Execution VulnerabilityZero Day Initiative · Mar 6, 2026