ZDI-CAN-29787: ZDI-26-467: GStreamer rtpsbcdepay Use-After-Free 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 processing of RTP payload elements. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process.
Other sources
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2026-18299.
— ZDI
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
GStreamer rtpsbcdepayto a version that resolves this vulnerability.Patch ZDI-26-467 - Compensating control
Since exploitation requires interaction with GStreamer rtpsbcdepay, restrict or block untrusted RTP/RTSP sources that could reach affected GStreamer pipeline components (e.g., limit inbound media sources at the network layer).
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-29787?
ZDI-CAN-29787 has a CVSS rating of 7.8, indicating a high severity risk.
How can I fix ZDI-CAN-29787?
To fix ZDI-CAN-29787, you should update GStreamer to the latest version that addresses this vulnerability.
What types of systems are affected by ZDI-CAN-29787?
ZDI-CAN-29787 affects installations of GStreamer that utilize the rtpsbcdepay component.
What could be the impact of exploiting ZDI-CAN-29787?
Exploiting ZDI-CAN-29787 could allow remote attackers to execute arbitrary code on vulnerable GStreamer installations.
What needs to happen for ZDI-CAN-29787 to be exploited?
Interaction with the GStreamer library is required for ZDI-CAN-29787 to be exploited.