What is RHSA-2026:59133?

RHSA-2026:59133 is a security advisory published by Red Hat Product Security with High severity. Red Hat Security Advisory: gstreamer1-plugins-good security update

Which CVE IDs does RHSA-2026:59133 cover?

RHSA-2026:59133 covers the following CVE IDs: CVE-2026-18296, CVE-2026-18298. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of RHSA-2026:59133?

RHSA-2026:59133 has a CVSS v3 base score of 7.8, published by Red Hat Product Security.

Which products are affected by RHSA-2026:59133?

RHSA-2026:59133 affects 26 products, including: Red Hat Enterprise Linux AppStream (v. 10); gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10); gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10); gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10); gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.src as a component of Red Hat Enterprise Linux AppStream (v. 10); and others — see the full list on the advisory page.

RHSA-2026:59133HighCVSS 7.8

Red Hat Security Advisory: gstreamer1-plugins-good security update

Vendor

Red Hat Product Security

Published

August 24, 2026

Last Modified

September 10, 2026

🔗 CVE IDs covered (2)

CVE-2026-18296 →CVE-2026-18298 →

📋 Description

CVE-2026-18296 — gstreamer-plugins-good: GStreamer: Remote Code Execution via MRF file parsing heap-based buffer overflow CVE-2026-18298 — gstreamer: GStreamer: Remote code execution via heap-based buffer overflow in PNG file parsing

🎯 Affected products26

Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-0:1.26.7-2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-debuginfo-0:1.26.7-2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-debuginfo-0:1.26.7-2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-debuginfo-0:1.26.7-2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-debuginfo-0:1.26.7-2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-debugsource-0:1.26.7-2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-debugsource-0:1.26.7-2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-debugsource-0:1.26.7-2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-debugsource-0:1.26.7-2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-gtk-0:1.26.7-2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-gtk-0:1.26.7-2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-gtk-0:1.26.7-2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-gtk-0:1.26.7-2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-gtk-debuginfo-0:1.26.7-2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-gtk-debuginfo-0:1.26.7-2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-gtk-debuginfo-0:1.26.7-2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-gtk-debuginfo-0:1.26.7-2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-qt6-debuginfo-0:1.26.7-2.el10_2.7.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-qt6-debuginfo-0:1.26.7-2.el10_2.7.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-qt6-debuginfo-0:1.26.7-2.el10_2.7.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
gstreamer1-plugins-good-qt6-debuginfo-0:1.26.7-2.el10_2.7.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: To mitigate this issue, users should avoid opening or processing untrusted Multimedia Research Forum (MRF) files. Exercise caution when interacting with untrusted web content that may attempt to deliver malicious MRF files, as user interaction is required for exploitation. Workaround: To reduce the risk of exploitation, users should avoid opening or processing untrusted PNG files from unknown or suspicious sources. This operational control is crucial as the vulnerability requires user interaction to trigger the heap-based buffer overflow.

🔗 CVE IDs covered (2)

📋 Description

🎯 Affected products26

✅ Remediation

🔗 References (5)