Denial of Service Vulnerability in GStreamer's RTP Depayloader Elements
CVE-2026-18649
7.5HIGH
What is CVE-2026-18649?
A vulnerability exists in the GStreamer gst-plugins-good package where the rtph264depay and rtph265depay RTP depayloader elements fail to enforce a limit on the size of the reassembly buffer utilized during the processing of fragmented RTP packets. This flaw permits a remote, unauthenticated attacker to exploit the system by sending a continuous stream of RTP fragments without concluding the sequence with an end-of-fragment marker. Consequently, the reassembly buffer can swell indefinitely, ultimately leading to exhaustion of process memory and resulting in a denial of service as the affected process is terminated.
References
CVSS V3.1
Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved
Credit
Red Hat would like to thank Yehia Ali Mohamed Ezzat for reporting this issue.