CVE-2026-125041: Gst plugins good1.0 · A flaw was found in GStreamer's gst-plugins-good MOV/MP4 demuxer
Affects gst-plugins-good1.0Source GCVE Database
Not known to be exploited · CVSS 5.5 Medium.
Data as of 11 Nov 2026, 14:19 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 5.5 |
|---|
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 9 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 11 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10gst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu Pro 20.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=esm-infra/focalOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSgst-plugins-good1.0pkg:deb/ubuntu/gst-plugins-good1.0?arch=source&distro=esm-infra/bionicOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, avoid processing untrusted MOV/MP4 files with the affected gst-plugins-good versions.
Description
A vulnerability exists in GStreamer's gst-plugins-good MOV/MP4 demuxer affecting certain versions. The flaw occurs when processing an uncompressed video track, where qtdemux does not properly validate declared row alignment and chroma geometry. This can lead to an out-of-bounds heap read during sample copying, potentially causing application crashes and denial of service.