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Fencer Intel
medium 6.5

CVE-2026-119729 json

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

published 10d ago modified 4d ago also EUVD-2026-114319

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

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.

Patch / fix

  • gst-plugins-bad1.0 Debian 14 1.28.2-1
  • gst-plugins-base1.0 Debian 14 1.28.2-1

debian advisories DEBIAN-CVE-2026-119729

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-119729 updated cvss 6.5

gst-plugins-base: gst-plugins-bad: gst-plugins-base/gst-plugins-bad: Integer overflow in AV1 LEB128 parser allows denial of service

  • Red Hat Enterprise Linux 9 gstreamer1-plugins-base, gstreamer1-plugins-bad-free, gstreamer1-plugins-base-tools, gstreamer1-plugins-bad-free-libs Red Hat Enterprise Linux 10 gstreamer1-plugins-base, gstreamer1-plugins-bad-free
    affected: workaround, no fix available “No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.”
  • Red Hat Enterprise Linux 6 gstreamer-plugins-base, gstreamer-plugins-bad-free, gstreamer-plugins-bad-free-extras Red Hat Enterprise Linux 7 gstreamer-plugins-base, gstreamer1-plugins-base, gstreamer-plugins-bad-free, gstreamer1-plugins-bad-free, gstreamer-plugins-base-tools, gstreamer1-plugins-base-tools, +1 more Red Hat Enterprise Linux 8 gstreamer1-plugins-base, gstreamer1-plugins-bad-free
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
10d ago

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.