CVE-2026-73473: GStreamer gst-plugins-good (avidemux) · Unthrottled Resource Allocation
Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium : upgrade to 1.28.6 when convenient.
Data as of 6 Nov 2026, 10:35 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 5.5 |
|---|
- Patch
- Available – fixed in 1.28.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 6 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade gst-plugins-good to 1.28.6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GStreamergst-plugins-good | Affected
| Fixed in
|
AI-suggested
A fix is available upstream in gst-plugins-good version 1.28.6. Users and vendors should upgrade to this version or later to remediate the vulnerability. Standard Red Hat Enterprise Linux server installations are less exposed as they do not process untrusted multimedia streams by default.
Description
A vulnerability in GStreamer's gst-plugins-good (avidemux) subindex parser allows excessive memory allocation due to missing validation of the entry count. This can cause a denial of service (DoS) when opening or previewing a crafted AVI file. The issue is fixed in gst-plugins-good version 1.28.6.
References
- nvd.nist.gov/vuln/detail/CVE-2026-73473 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-73473 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2514915 (opens in a new tab)
- gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231 (opens in a new tab)
- gstreamer.freedesktop.org/security/sa-2026-0072.html (opens in a new tab)