{"id":"CVE-2026-73473","title":"Gstreamer1-plugins-good: gstreamer: missing subindex entry count validation in avidemux leading to denial of service","summary":"A flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin,…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-770"],"vendor":"GStreamer","product":"gst-plugins-good","affected":["gst-plugins-good < 1.28.6"],"published":"2026-11-06","updated":"2026-11-06","sourceUpdated":"2026-11-06T06:32:22.598Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-73473","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-73473"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2514915","label":"RHBZ#2514915"},{"url":"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231"},{"url":"https://gstreamer.freedesktop.org/security/sa-2026-0072.html"}],"tags":["cve.org"],"ingestedAt":"2026-11-06T06:46:27.261Z","slug":"CVE-2026-73473","body":"## Overview\n\nA flaw was found in GStreamer gst-plugins-good (avidemux). In the subindex parser, missing validation of the entry count can cause excessive memory allocation and denial of service. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).\n\n## Affected\n\n- `gst-plugins-good < 1.28.6`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}