Red Hat Security Advisory: gstreamer1 security update
Affects Red Hat gstreamer1Source GCVE Database
Not known to be exploited · CVSS 7.5 High.
Data as of 12 Nov 2026, 06:50 UTC
Thin evidence
One scorer or none| CNA (redhat) | CVSS 3.1 | 7.5 |
|---|
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 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 |
|---|---|---|
| Red Hat Enterprise Linux 10gstreamer1 | Affected– | Fixed in– |
| Red Hat Enterprise Linux 8gstreamer1 | Affected– | Fixed in– |
| Red Hat Enterprise Linux 9gstreamer1 | Affected– | Fixed in– |
| Red Hat Enterprise Linux 7gstreamer1 | Affected– | Fixed in– |
AI-suggested
Red Hat has released updated gstreamer1 packages for Red Hat Enterprise Linux 10 that fix this vulnerability. Users should apply the security update as described in the Red Hat advisory RHSA-2026:99129 and the referenced article https://access.redhat.com/articles/11258 to remediate the issue. No additional mitigation steps are indicated or required beyond applying the official patch.
Description
A use-after-free vulnerability (CVE-2026-125704) exists in the GStreamer core buffer value deserialization component of the gstreamer1 streaming media framework. Red Hat has issued a security update for Red Hat Enterprise Linux 10 to address this issue. The vulnerability is rated as having an Important security impact by Red Hat Product Security.