{"id":"CVE-2026-119843","title":"Gst-plugins-good: assertion failures in FLV demuxer when parsing malformed enhanced audio/video tags","summary":"A flaw was found in GStreamer's gst-plugins-good package. The FLV media demuxer does not properly validate buffer sizes and data availability when processing enhanced audio and video tags in malformed or truncated FLV streams. A remote a…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-617"],"vendor":"Red Hat","product":"gstreamer1-plugins-good","affected":["gstreamer1-plugins-good","gstreamer1-plugins-good","gstreamer1-plugins-good","gstreamer1-plugins-good","gst-plugins-good < 1.28.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-03T13:18:19.247406Z"},"published":"2026-11-03","updated":"2026-11-03","sourceUpdated":"2026-11-03T13:20:08.399Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-119843","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-119843"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2564182","label":"RHBZ#2564182"},{"url":"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11244.patch"},{"url":"https://gstreamer.freedesktop.org/security/sa-2026-0020.html"}],"tags":["cve.org"],"epss":0.00563,"epssPercentile":0.46931,"ingestedAt":"2026-11-05T19:30:42.945Z","slug":"CVE-2026-119843","body":"## Overview\n\nA flaw was found in GStreamer's gst-plugins-good package. The FLV media demuxer does not properly validate buffer sizes and data availability when processing enhanced audio and video tags in malformed or truncated FLV streams. A remote attacker could exploit this vulnerability by providing a specially crafted FLV media file that, when opened or streamed by a GStreamer-based application, triggers an assertion failure or a process crash, leading to denial of service.\n\n## Affected\n\n- `gstreamer1-plugins-good`\n- `gstreamer1-plugins-good`\n- `gstreamer1-plugins-good`\n- `gstreamer1-plugins-good`\n- `gst-plugins-good < 1.28.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nNo mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}