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Vulnerability · Published Oct 30, 2026 · Assigned by redhat

CVE-2026-119842Gst-plugins-base: gst-plugins-base: null-pointer dereference in mdvdsub subtitle parser via missing closing-brace check

Medium 6.5

In plain English

A medium-severity null pointer dereference in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 73.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12gst-plugins-base1.0no fix listedDEBIAN-CVE-2026-119842
Debian:13gst-plugins-base1.0no fix listedDEBIAN-CVE-2026-119842
Debian:14gst-plugins-base1.01.28.2-1DEBIAN-CVE-2026-119842
Ubuntu:22.04:LTSgst-plugins-base1.0no fix listedUBUNTU-CVE-2026-119842
Ubuntu:24.04:LTSgst-plugins-base1.0no fix listedUBUNTU-CVE-2026-119842

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References