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CVE-2026-18649

Gstreamer1-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay rtp depayloaders

Published
Last modified
published
Not listed in CISA KEV
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

  • gstreamer1-plugins-good

    Version range not reported

References 16

0xsemizzz.vercel.app

access.redhat.com

bugzilla.redhat.com

GitHub · 0xSemizzz/CVE-2026-18649

gitlab.freedesktop.org