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CVE-2026-3083 GStreamer CVE debrief

CVE-2026-3083 is a high-severity vulnerability in the GStreamer library, specifically affecting the rtpqdm2depay component. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. The flaw exists within the processing of X-QDM RTP payload elements, where the process does not properly validate user-supplied data, leading to a write past the end of an allocated array. Successful exploitation requires interaction with this library, but attack vectors may vary depending on the implementation. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 8.8, indicating a high severity level.

Vendor
GStreamer
Product
Unknown
CVSS
HIGH 8.8
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 8.8, this vulnerability is considered high severity and requires immediate attention. Developers and administrators responsible for GStreamer installations should review their systems for potential exposure and apply patches as soon as possible.

Technical summary

The vulnerability exists in the rtpqdm2depay component of GStreamer, where improper validation of user-supplied data during the parsing of packetid elements can lead to an out-of-bounds write. This can result in remote code execution in the context of the current process. The vulnerability is triggered by processing X-QDM RTP payload elements. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating that the vulnerability can be exploited remotely with low attack complexity and no privileges required.

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 necessary to prevent potential exploitation.

Recommended defensive actions

  • Apply patches or updates provided by GStreamer to address the vulnerability in the rtpqdm2depay component.
  • Review and update GStreamer installations to ensure they are using a version that includes the fix for CVE-2026-3083.
  • Implement compensating controls, such as monitoring for suspicious activity related to GStreamer applications.
  • Conduct a thorough inventory of systems and applications that use GStreamer to identify potential exposure.
  • Consider applying additional security measures, such as network segmentation or access controls, to limit the potential impact of a successful exploit.

Evidence notes

The CVE-2026-3083 vulnerability was publicly disclosed on March 16, 2026, and has since been modified on June 30, 2026. The vulnerability is associated with CWE-129 and CWE-787. Multiple references, including vendor advisories and source references, are available for this vulnerability.

Official resources

This article was generated with AI assistance based on the supplied source corpus and is intended for informational purposes only.