Detections
Analytics
CVE-2026-18649
high
Description
A flaw was found in the GStreamer gst-plugins-good package. The rtph264depay and rtph265depay RTP depayloader elements do not enforce a maximum size limit on the reassembly buffer used during fragmented RTP packet processing. A remote, unauthenticated attacker can send a continuous stream of RTP fragments without ever transmitting an end-of-fragment marker, causing the reassembly buffer to grow without bound until process memory is exhausted. This results in a denial of service through process termination.
References
https://access.redhat.com/errata/RHSA-2026:70803
https://access.redhat.com/errata/RHSA-2026:70584
https://access.redhat.com/errata/RHSA-2026:70264
https://access.redhat.com/errata/RHSA-2026:69232
https://access.redhat.com/errata/RHSA-2026:65999
https://access.redhat.com/errata/RHSA-2026:65959
https://access.redhat.com/errata/RHSA-2026:61943
https://access.redhat.com/errata/RHSA-2026:61588
https://access.redhat.com/errata/RHSA-2026:56966
https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/113
https://github.com/0xSemizzz/CVE-2026-18649
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-53768
https://bugzilla.redhat.com/show_bug.cgi?id=2510614
https://access.redhat.com/security/cve/CVE-2026-18649
https://0xsemizzz.vercel.app/projects/cve-2026-18649-gstreamer-rtp-dos/