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CVE-2026-121629VulnerabilityPublished

Red Hat Security Advisory: gstreamer1-plugins-good security update

Affects Red Hat gstreamer1-plugins-goodSource GCVE Database

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Authoritative record:CVE-2026-121629· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade the Red Hat redhat/gstreamer1-plugins-good package to 1.28.9 soon.

Data as of 12 Nov 2026, 06:51 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.17.5
Patch
Available – fixed in 1.28.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

Upgrade the Red Hat redhat/gstreamer1-plugins-good package to 1.28.9.

Affected software

ProductAffectedFixed in
Red Hatredhat/gstreamer1-plugins-goodpkg:rpm/redhat/gstreamer1-plugins-goodOther threatsAffected
  • >=1.26.0 <1.28.9
Fixed in
  • 1.28.9

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Red Hat has released updated gstreamer1-plugins-good packages (version 1.26.7-2.el10_2.9) for Red Hat Enterprise Linux 10.2 Extended Update Support across multiple architectures. Users should apply these updates promptly following Red Hat's official guidance at https://access.redhat.com/articles/11258 to remediate the vulnerability.

Description

A security vulnerability (CVE-2026-121629) exists in the gst-plugins-good component of the GStreamer multimedia framework used in Red Hat Enterprise Linux 10.2 Extended Update Support. The flaw involves local file disclosure through unvalidated file:// URIs in the adaptivedemux2 manifest handling. Red Hat has issued an important security update to address this issue.

References

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