CVE-2026-18299

High

Description

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. Was ZDI-CAN-29787.

SeverityHigh
CVSS7.8
Exploit probability—
ProductGstreamer
PublishedAug 20, 2026
First seenAug 20, 2026

How to fix

Update
  • gstreamer gstreamer1.28.5 or later

Affected products

ProductAffected versionsFixed in
gstreamer gstreamerv < 1.28.51.28.5

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