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Fencer Vulns
high 7.8

CVE-2026-18297 json

GStreamer OGG File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability

published 2026-08-20 2 mo ago modified 2026-10-26 14 d ago also EUVD-2026-63446

cvss
7.8
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

GStreamer OGG File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of OGG files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29584.

Patch / fix

  • gstreamer gstreamer 1.28.5
  • gst-plugins-base1.0 Debian 12 1.22.0-3+deb12u7
  • gst-plugins-base1.0 Debian 13 1.26.2-1+deb13u2
  • gst-plugins-base1.0 Debian 14 1.28.5-1

debian advisories DEBIAN-CVE-2026-18297

  • gst-plugins-base1.0 Ubuntu 22.04 LTS 1.20.1-1ubuntu0.7
  • gst-plugins-base1.0 Ubuntu 24.04 LTS 1.24.2-1ubuntu0.5
  • gst-plugins-base1.0 Ubuntu 26.04 LTS 1.28.2-1ubuntu0.1
  • gst-plugins-base1.0 Ubuntu Pro 16.04 LTS 1.8.3-1ubuntu0.3+esm5
  • gst-plugins-base1.0 Ubuntu Pro 18.04 LTS 1.14.5-0ubuntu1~18.04.3+esm4
  • gst-plugins-base1.0 Ubuntu Pro 20.04 LTS 1.16.3-0ubuntu1.4+esm3

ubuntu advisories UBUNTU-CVE-2026-18297

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gstreamer1-plugins-base RHEL 9 1.22.12-8.el9_8.2
  • gstreamer1-plugins-base-tools RHEL 9 1.22.12-8.el9_8.2
  • gstreamer1-plugins-base RHEL 8 1.16.1-6.el8_10.1
  • gstreamer1-plugins-base RHEL 10.2 1.26.7-2.el10_2.1
  • gstreamer1-plugins-base-tools RHEL 10.2 1.26.7-2.el10_2.1
  • gstreamer1-plugins-base RHEL 8.6 EUS_LONG_LIFE, RHEL 8.6 AUS 1.16.1-4.el8_6.1
  • gstreamer1-plugins-base RHEL 7 ELS 1.10.4-4.el7_9.1
  • gstreamer1-plugins-base-tools RHEL 7 ELS 1.10.4-4.el7_9.1

red hat advisories RHSA-2026:70260RHSA-2026:69866RHSA-2026:69531RHSA-2026:69100RHSA-2026:68636RHSA-2026:68503

  • gstreamer1-plugins-base AlmaLinux 9 1.22.12-8.el9_8.2
  • gstreamer1-plugins-base AlmaLinux 8 1.16.1-6.el8_10.1
  • gstreamer1-plugins-base AlmaLinux 10 1.26.7-2.el10_2.1
  • gstreamer1-plugins-base-tools AlmaLinux 10 1.26.7-2.el10_2.1

almalinux advisories ALSA-2026:69100ALSA-2026:59487ALSA-2026:59097

  • gstreamer1-plugins-base Rocky Linux 9 1.22.12-8.el9_8.2
  • gstreamer1-plugins-base Rocky Linux 8 1.16.1-6.el8_10.1
  • gstreamer1-plugins-base Rocky Linux 10 1.26.7-2.el10_2.1

rocky linux advisories RLSA-2026:69100RLSA-2026:59487RLSA-2026:59097

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-2026-18297 updated cvss 7.8

gstreamer-plugins-base: GStreamer: Arbitrary code execution via OGG file parsing buffer overflow

  • Red Hat Enterprise Linux 7 gstreamer-plugins-base, gstreamer-plugins-base-tools Red Hat Enterprise Linux 8 mingw-gstreamer1-plugins-base, mingw32-gstreamer1-plugins-base, mingw64-gstreamer1-plugins-base
    affected: workaround, no fix available
  • Red Hat Enterprise Linux AppStream (v. 8) gstreamer1-plugins-base 1.16.1-6.el8_10.1
    fixed: vendor fix RHSA-2026:59487
  • Red Hat Enterprise Linux AppStream (v. 9) gstreamer1-plugins-base 1.22.12-8.el9_8.2, gstreamer1-plugins-base-tools 1.22.12-8.el9_8.2
    fixed: vendor fix RHSA-2026:69100
  • Red Hat Enterprise Linux AppStream (v. 10) gstreamer1-plugins-base 1.26.7-2.el10_2.1, gstreamer1-plugins-base-tools 1.26.7-2.el10_2.1
    fixed: vendor fix RHSA-2026:59097
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) gstreamer1-plugins-base 1.16.1-4.el8_4.1
    fixed: vendor fix RHSA-2026:69531
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) gstreamer1-plugins-base 1.16.1-4.el8_6.1
    fixed: vendor fix RHSA-2026:70260
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) gstreamer1-plugins-base 1.16.1-4.el8_8.1
    fixed: vendor fix RHSA-2026:68503
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) gstreamer1-plugins-base 1.18.4-8.el9_2.1, gstreamer1-plugins-base-tools 1.18.4-8.el9_2.1
    fixed: vendor fix RHSA-2026:67891
show 9 more
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) gstreamer1-plugins-base 1.22.1-4.el9_4.1, gstreamer1-plugins-base-tools 1.22.1-4.el9_4.1
    fixed: vendor fix RHSA-2026:67892
  • Red Hat Enterprise Linux AppStream EUS (v. 10.0) gstreamer1-plugins-base 1.24.11-1.el10_0.2, gstreamer1-plugins-base-tools 1.24.11-1.el10_0.2
    fixed: vendor fix RHSA-2026:68636
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) gstreamer1-plugins-base 1.22.12-5.el9_6.1, gstreamer1-plugins-base-tools 1.22.12-5.el9_6.1
    fixed: vendor fix RHSA-2026:67890
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) gstreamer1-plugins-base 1.16.1-4.el8_4.1
    fixed: vendor fix RHSA-2026:69531
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) gstreamer1-plugins-base 1.16.1-4.el8_6.1
    fixed: vendor fix RHSA-2026:70260
  • Red Hat Enterprise Linux AppStream TUS (v.8.8) gstreamer1-plugins-base 1.16.1-4.el8_8.1
    fixed: vendor fix RHSA-2026:68503
  • Red Hat Enterprise Linux Server (v. 7 ELS) gstreamer1-plugins-base 1.10.4-4.el7_9.1 Red Hat Enterprise Linux Server Optional (v. 7 ELS) gstreamer1-plugins-base-tools 1.10.4-4.el7_9.1
    fixed: vendor fix RHSA-2026:69866
  • Red Hat Enterprise Linux 6 gstreamer-plugins-base
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 10 snapshot 46.3-1.el10
    not affected: component 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
total
Assessed
2 mo ago

Exploit prediction

0.24% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • GStreamer GStreamer

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow

References

Sources

Fencer Vulns 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.