Allocation of Resources Without Limits or Throttling in gst-plugins-good and gstreamer - CVE-2026-18649
Published: August 6, 2026
Vulnerability identifier: #VU141136
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-18649
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource management in the rtph264depay and rtph265depay RTP depayload elements when processing fragmented NAL units during reassembly. A remote attacker can send a stream of syntactically valid FU-A fragments that never complete reassembly to cause a denial of service.
The issue does not require malformed packets or high packet rates.
Affected software
gst-plugins-good
gstreamer
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
gstreamer1-plugins-good (Red Hat package)
gstreamer
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
gstreamer1-plugins-good (Red Hat package)
How to mitigate CVE-2026-18649
Install security update from vendor's website.
gst-plugins-good - update to 1.28.6
gstreamer - update to 1.28.6
gstreamer1-plugins-good (Red Hat package) - update to 1.22.12-7.el9_8.2
gstreamer - update to 1.28.6
gstreamer1-plugins-good (Red Hat package) - update to 1.22.12-7.el9_8.2