high7.5
CVE-2026-18649
A flaw was found in the GStreamer gst-plugins-good package.
Impact
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.
Affected packages
This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.
Weakness classification
References
- NVD record
- CVE.org record
- https://0xsemizzz.vercel.app/projects/cve-2026-18649-gstreamer-rtp-dos/
- https://access.redhat.com/errata/RHSA-2026:53451
- https://access.redhat.com/errata/RHSA-2026:53452
- https://access.redhat.com/errata/RHSA-2026:56966
- https://access.redhat.com/errata/RHSA-2026:61588
- https://access.redhat.com/errata/RHSA-2026:61943
- https://access.redhat.com/errata/RHSA-2026:65959
- https://access.redhat.com/errata/RHSA-2026:65999
- https://access.redhat.com/errata/RHSA-2026:69232
- https://access.redhat.com/errata/RHSA-2026:70264
- https://access.redhat.com/errata/RHSA-2026:70584
- https://access.redhat.com/errata/RHSA-2026:70803
- https://access.redhat.com/security/cve/CVE-2026-18649
- https://bugzilla.redhat.com/show_bug.cgi?id=2510614
- https://github.com/0xSemizzz/CVE-2026-18649
- https://gitlab.freedesktop.org/gstreamer/gstreamer-security/-/merge_requests/113