CVE-2026-119842
Gst-plugins-base: gst-plugins-base: null-pointer dereference in mdvdsub subtitle parser via missing closing-brace check
A flaw was found in GStreamer's gst-plugins-base MicroDVD subtitle parser. When processing a specially crafted subtitle file, the parser may dereference a NULL pointer, causing the application to crash when a user opens or plays media with a malformed MicroDVD (.sub) subtitle file.
Fixes and workarounds
Workaround
Avoid untrusted MicroDVD (.sub) subtitle files; disable automatic subtitle loading if supported.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Red Hat Enterprise Linux 10 Red Hat gstreamer1-plugins-base
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 6 Red Hat gstreamer-plugins-base
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 7 Red Hat gstreamer1-plugins-base
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 7 Red Hat gstreamer-plugins-base
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8 Red Hat gstreamer1-plugins-base
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 9 Red Hat gstreamer1-plugins-base
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: affected |
CNA: redhat |
| gst-plugins-base GStreamer project https://gstreamer.freedesktop.org/ |
≥ 0; < 1.28.2 (affected, semver) 1.28.2 (unaffected) |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | CNA: redhat |
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/security/cve/CVE-2026-119842CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2564183CNA: redhat · issue-tracking, x_refsource_REDHAT
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11238.patchCNA: redhat
- https://gstreamer.freedesktop.org/security/sa-2026-0019.htmlCNA: redhat
- https://access.redhat.com/security/cve/CVE-2026-119842[email protected]
- https://bugzilla.redhat.com/show_bug.cgi?id=2564183[email protected]
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11238.patch[email protected]
- https://gstreamer.freedesktop.org/security/sa-2026-0019.html[email protected]
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