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, 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).
History

Thu, 12 Nov 2026 01:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 06 Nov 2026 17:00:00 +0000

Type Values Removed Values Added
First Time appeared Gstreamer
Gstreamer gst-plugins-good
Vendors & Products Gstreamer
Gstreamer gst-plugins-good

Fri, 06 Nov 2026 06:45:00 +0000

Type Values Removed Values Added
Description 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, 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).
Title Gstreamer1-plugins-good: gstreamer: missing subindex entry count validation in avidemux leading to denial of service
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-11-06T06:32:22.598Z

Updated: 2026-11-10T19:42:13.393Z

Reserved: 2026-08-12T16:53:47.493Z

Link: CVE-2026-73473

cve-icon Vulnrichment

Updated: 2026-11-10T19:42:08.579Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-06T07:17:40.917

Modified: 2026-11-10T20:19:36.233

Link: CVE-2026-73473

cve-icon Redhat

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