High severity7.8NVD Advisory· Published Mar 16, 2026· Updated Jul 21, 2026
CVE-2026-2921
CVE-2026-2921
Description
GStreamer RIFF Palette Integer 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 handling of palette data in AVI files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28854.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
12- osv-coords9 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-free
< 1.26.7-2.el10_2+ 8 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
Patches
Vulnerability mechanics
References
22- gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e3a99c35266fc92dd6a18ac5fde028d0cda559e6nvdVendor Advisory
- www.zerodayinitiative.com/advisories/ZDI-26-168/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-2026:7673nvd
- access.redhat.com/errata/RHSA-2026:7850nvd
- access.redhat.com/errata/RHSA-2026:8854nvd
- access.redhat.com/errata/RHSA-2026:8857nvd
- access.redhat.com/errata/RHSA-2026:8862nvd
- access.redhat.com/errata/RHSA-2026:8874nvd
- access.redhat.com/errata/RHSA-2026:8876nvd
- access.redhat.com/errata/RHSA-2026:9446nvd
- access.redhat.com/errata/RHSA-2026:9447nvd
- access.redhat.com/errata/RHSA-2026:9487nvd
- access.redhat.com/errata/RHSA-2026:9488nvd
- access.redhat.com/security/cve/CVE-2026-2921nvd
- bugzilla.redhat.com/show_bug.cginvd
- lists.debian.org/debian-lts-announce/2026/03/msg00018.htmlnvd
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2921.jsonnvd
News mentions
1- ZDI-26-168: GStreamer RIFF Palette Integer Overflow Remote Code Execution VulnerabilityZero Day Initiative · Mar 6, 2026