RHSA-2026:84584 — Security Advisory

Red Hat Security Advisory: webkit2gtk3 security, bug fix, and enhancement update

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Severity

Critical

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · October 19, 2026

Updated · November 2, 2026

Topic

An update for webkit2gtk3 is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.

Security Fix(es):

chromium-browser: angle: ANGLE in Google Chrome: Information disclosure via out-of-bounds read (CVE-2026-87596)
chromium-browser: angle: ANGLE in Google Chrome: Arbitrary code execution via crafted HTML page (CVE-2026-87500)
chromium-browser: angle: Chromium: Arbitrary code execution via buffer overflow in ANGLE (CVE-2026-87654)
chromium-browser: angle: Google Chrome (ANGLE): Arbitrary Code Execution vulnerability (CVE-2026-87621)
chromium-browser: angle: Chromium-browser: Arbitrary code execution via use-after-free vulnerability in ANGLE (CVE-2026-87512)
chromium-browser: angle: ANGLE: Arbitrary code execution in Google Chrome due to use-after-free (CVE-2026-87648)
chromium-browser: angle: ANGLE in Google Chrome: Information disclosure via crafted HTML page (CVE-2026-87602)
chromium-browser: angle: ANGLE in Google Chrome: Information disclosure via crafted HTML page (CVE-2026-87586)
chromium-browser: angle: ANGLE in Google Chrome: Arbitrary code execution via out-of-bounds read (CVE-2026-87604)
chromium-browser: angle: chromium-browser: Improper input validation in ANGLE (CVE-2026-91738)
chromium-browser: angle: chromium-browser: Uninitialized resource in ANGLE (CVE-2026-91720)

Bug Fix(es) and Enhancement(s):

webkit2gtk3 2.54.0 regression breaks Eclipse IDE WebKit-based views on CentOS Stream 9 [rhel-8.10.z] (JIRA:RHEL-274406)

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.