Skip to content
OpenAdvisories
High ALSA-2026:59133 3 CVEs

Important: gstreamer1-plugins-good security update

Published Aug 24, 2026 · Updated Oct 29, 2026

Ecosystem: AlmaLinux

Summary

GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under the LGPL license.

Security Fix(es):

* gstreamer: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow (CVE-2026-18296)
* gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing (CVE-2026-18298)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Fixed packages 2

ReleasePackageFixed in
AlmaLinux · 10 gstreamer1-plugins-good 1.26.7-2.el10_2.7
AlmaLinux · 10 gstreamer1-plugins-good-gtk 1.26.7-2.el10_2.7

Vulnerabilities 3

  • High 7.8
    CVE-2026-18295

    GStreamer MRF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

    GStreamer MRF File Parsing Out-Of-Bounds Write 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…

    GStreamer GStreamer gst-plugins-good1.0 gst-plugins-good1.0 Debian Ubuntu
  • High 7.8
    CVE-2026-18296

    GStreamer MRF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

    GStreamer MRF File Parsing Heap-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 …

    GStreamer GStreamer gst-plugins-good1.0 gst-plugins-good1.0 Debian Ubuntu
  • High 7.8
    CVE-2026-18298

    GStreamer PNG File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

    GStreamer PNG File Parsing Heap-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 …

    GStreamer GStreamer gst-plugins-good1.0 gst-plugins-good1.0 Debian Ubuntu

References

  • report
    https://access.redhat.com/security/cve/CVE-2026-18296
  • report
    https://access.redhat.com/security/cve/CVE-2026-18298
  • report
    https://bugzilla.redhat.com/2520580
  • report
    https://bugzilla.redhat.com/2520590
  • advisory
    https://errata.almalinux.org/10/ALSA-2026-59133.html
  • report
    https://www.redhat.com/security/data/cve/CVE-2026-18295.html