CVE-2026-2921
GStreamer RIFF Palette Integer Overflow Remote Code Execution Vulnerability
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.
INFO
Published Date :
March 16, 2026, 2:19 p.m.
Last Modified :
March 29, 2026, 1:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.0 | HIGH | 99f1926a-a320-47d8-bbb5-42feb611262e | ||||
| CVSS 3.0 | HIGH | MITRE-CVE | ||||
| CVSS 3.0 | HIGH | [email protected] |
Solution
- Update GStreamer to a patched version.
- Validate user-supplied data for palette handling.
- Restrict processing of untrusted AVI files.
Public PoC/Exploit Available at Github
CVE-2026-2921 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-2921.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-2921 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-2921
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
DSA and DLA for Debian last 14 days
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-2921 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-2921 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Mar. 29, 2026
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2026/03/msg00018.html -
Initial Analysis by [email protected]
Mar. 17, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:* versions up to (excluding) 1.28.1 Added Reference Type Zero Day Initiative: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e3a99c35266fc92dd6a18ac5fde028d0cda559e6 Types: Vendor Advisory Added Reference Type Zero Day Initiative: https://www.zerodayinitiative.com/advisories/ZDI-26-168/ Types: Third Party Advisory -
New CVE Received by [email protected]
Mar. 16, 2026
Action Type Old Value New Value Added 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. Added CVSS V3 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-190 Added Reference https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e3a99c35266fc92dd6a18ac5fde028d0cda559e6 Added Reference https://www.zerodayinitiative.com/advisories/ZDI-26-168/