CVE-2026-2921

CVE Details

Release Date:	2026-03-16
Impact:	Important	What is this?

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.

See more information about CVE-2026-2921 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.8
Vector String:	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Version:	3.1
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	Required
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 10 (gstreamer1-plugins-bad-free)	ELSA-2026-6259	2026-03-31
Oracle Linux version 10 (gstreamer1-plugins-base)	ELSA-2026-6259	2026-03-31
Oracle Linux version 10 (gstreamer1-plugins-good)	ELSA-2026-6259	2026-03-31
Oracle Linux version 10 (gstreamer1-plugins-ugly-free)	ELSA-2026-6259	2026-03-31