What is CVE-2026-73473?

CVE-2026-73473 is a medium-severity vulnerability in Gstreamer Gst-Plugins-Good, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-11-06.

How severe is CVE-2026-73473?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Gstreamer Gst-Plugins-Good

CVE-2026-73473

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).

Published 2026-11-06 · last modified 2026-11-06.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Gstreamer Gst-Plugins-Good

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

access.redhat.com/security/cve/CVE-2026-73473 (vdb-entry)
RHBZ#2514915 (issue-tracking)
gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231
gstreamer.freedesktop.org/security/sa-2026-0072.html

Frequently asked questions

What is CVE-2026-73473?: CVE-2026-73473 is a medium-severity vulnerability in Gstreamer Gst-Plugins-Good, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-11-06.
How severe is CVE-2026-73473?: Medium severity. CVSS v3 base score is 5.5 out of 10.