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CVE-2026-2922 GStreamer CVE debrief

CVE-2026-2922 is a high-severity vulnerability in the GStreamer library, specifically in the RealMedia Demuxer. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. The flaw exists within the processing of video packets, resulting from a lack of proper validation of user-supplied data, which can lead to a write past the end of an allocated buffer. Successful exploitation requires interaction with the library, but attack vectors may vary depending on the implementation. An attacker can leverage this vulnerability to execute code in the context of the current process.

Vendor
GStreamer
Product
Unknown
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-03-16
Original CVE updated
2026-06-30
Advisory published
2026-03-16
Advisory updated
2026-06-30

Who should care

Organizations using GStreamer in their applications should prioritize patching this vulnerability. Given the high CVSS score of 7.8, this issue is considered high-severity and requires immediate attention. Developers and security teams responsible for maintaining GStreamer-based systems or applications are particularly at risk and should take swift action.

Technical summary

The vulnerability is caused by an out-of-bounds write in the RealMedia Demuxer of GStreamer. This occurs due to insufficient validation of user-supplied data during video packet processing. The issue is categorized under CWE-787. The CVSS vector is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating a high severity level. The vulnerability was publicly disclosed on March 16, 2026, and last modified on June 30, 2026.

Defensive priority

High priority should be given to patching this vulnerability due to its high CVSS score and potential for remote code execution. Immediate action is required to prevent potential exploitation.

Recommended defensive actions

  • Apply the official patches or updates provided by GStreamer to address the vulnerability.
  • Review and update GStreamer installations to ensure they are using a version that includes the fix.
  • Implement compensating controls, such as monitoring for suspicious activity related to GStreamer.
  • Perform a thorough inventory check of systems and applications that use GStreamer to identify potential exposure.
  • Consider temporarily disabling or restricting the use of GStreamer until patches can be applied.

Evidence notes

The CVE record and NVD detail provide comprehensive information about the vulnerability. Vendor advisories and additional references are available for further context and mitigation guidance. The CVE was publicly disclosed on March 16, 2026, and last modified on June 30, 2026.

Official resources

This article is AI-assisted and based on the supplied source corpus.