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Vulnerability · Published Oct 30, 2026 · Assigned by redhat

CVE-2026-119729Gst-plugins-base: gst-plugins-bad: gst-plugins-base/gst-plugins-bad: integer overflow in av1 leb128 parser allows denial of service

Medium 6.5

In plain English

A medium-severity integer overflow 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 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 65.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in GStreamer. An integer overflow vulnerability in the AV1 LEB128 variable-length integer parser allows a remote attacker to cause a crash in applications that process AV1 media content. By crafting a malformed AV1 bitstream containing an invalid LEB128-encoded value, an attacker can cause integer overflow in the parser, resulting in incorrect length values being used during stream processing, which can lead to a denial of service.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12gst-plugins-bad1.0no fix listedDEBIAN-CVE-2026-119729
Debian:13gst-plugins-bad1.0no fix listedDEBIAN-CVE-2026-119729
Debian:14gst-plugins-bad1.01.28.2-1DEBIAN-CVE-2026-119729
Debian:12gst-plugins-base1.0no fix listedDEBIAN-CVE-2026-119729
Debian:13gst-plugins-base1.0no fix listedDEBIAN-CVE-2026-119729
Debian:14gst-plugins-base1.01.28.2-1DEBIAN-CVE-2026-119729
Ubuntu:22.04:LTSgst-plugins-base1.0no fix listedUBUNTU-CVE-2026-119729
Ubuntu:24.04:LTSgst-plugins-base1.0no fix listedUBUNTU-CVE-2026-119729

Affected products (as reported)

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

Weakness: CWE-190 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References