Detections
Analytics
CVE-2026-2921
high
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.
References
https://www.zerodayinitiative.com/advisories/ZDI-26-168/
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e3a99c35266fc92dd6a18ac5fde028d0cda559e6
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-2921.json
https://lists.debian.org/debian-lts-announce/2026/03/msg00018.html
https://bugzilla.redhat.com/show_bug.cgi?id=2447496
https://access.redhat.com/security/cve/CVE-2026-2921
https://access.redhat.com/errata/RHSA-2026:9488
https://access.redhat.com/errata/RHSA-2026:9487
https://access.redhat.com/errata/RHSA-2026:9447
https://access.redhat.com/errata/RHSA-2026:9446
https://access.redhat.com/errata/RHSA-2026:8876
https://access.redhat.com/errata/RHSA-2026:8874
https://access.redhat.com/errata/RHSA-2026:8862
https://access.redhat.com/errata/RHSA-2026:8857
https://access.redhat.com/errata/RHSA-2026:8854
https://access.redhat.com/errata/RHSA-2026:7850
https://access.redhat.com/errata/RHSA-2026:7673
https://access.redhat.com/errata/RHSA-2026:6750
https://access.redhat.com/errata/RHSA-2026:6300
https://access.redhat.com/errata/RHSA-2026:6259