{"schema_version": "1.7.0", "id": "RLSA-2026:84584", "modified": "2026-10-20T12:14:54.210936Z", "published": "2026-10-20T12:01:34.094814Z", "upstream": ["CVE-2026-87500", "CVE-2026-87512", "CVE-2026-87586", "CVE-2026-87596", "CVE-2026-87602", "CVE-2026-87604", "CVE-2026-87621", "CVE-2026-87648", "CVE-2026-87654", "CVE-2026-91720", "CVE-2026-91738"], "summary": "Critical: webkit2gtk3 security, bug fix, and enhancement update", "details": "WebKitGTK is the port of the portable web rendering engine WebKit to the GTK platform.\n\nSecurity Fix(es):\n\n* chromium-browser: angle: ANGLE in Google Chrome: Information disclosure via out-of-bounds read (CVE-2026-87596)\n\n* chromium-browser: angle: ANGLE in Google Chrome: Arbitrary code execution via crafted HTML page (CVE-2026-87500)\n\n* chromium-browser: angle: Chromium: Arbitrary code execution via buffer overflow in ANGLE (CVE-2026-87654)\n\n* chromium-browser: angle: Google Chrome (ANGLE): Arbitrary Code Execution vulnerability (CVE-2026-87621)\n\n* chromium-browser: angle: Chromium-browser: Arbitrary code execution via use-after-free vulnerability in ANGLE (CVE-2026-87512)\n\n* chromium-browser: angle: ANGLE: Arbitrary code execution in Google Chrome due to use-after-free (CVE-2026-87648)\n\n* chromium-browser: angle: ANGLE in Google Chrome: Information disclosure via crafted HTML page (CVE-2026-87602)\n\n* chromium-browser: angle: ANGLE in Google Chrome: Information disclosure via crafted HTML page (CVE-2026-87586)\n\n* chromium-browser: angle: ANGLE in Google Chrome: Arbitrary code execution via out-of-bounds read (CVE-2026-87604)\n\n* chromium-browser: angle: chromium-browser: Improper input validation in ANGLE (CVE-2026-91738)\n\n* chromium-browser: angle: chromium-browser: Uninitialized resource in ANGLE (CVE-2026-91720)\n\nBug Fix(es) and Enhancement(s):\n\n* webkit2gtk3 2.54.0 regression breaks Eclipse IDE WebKit-based views on CentOS Stream 9 [rhel-8.10.z] (JIRA:Rocky Linux-274406)\n\nFor 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.", "severity": [{"type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H"}], "affected": [{"package": {"ecosystem": "Rocky Linux:8", "name": "webkit2gtk3", "purl": "pkg:rpm/rocky-linux/webkit2gtk3?distro=rocky-linux-8&epoch=0"}, "ranges": [{"type": "ECOSYSTEM", "events": [{"introduced": "0"}, {"fixed": "0:2.54.1-1.el8_10"}], "database_specific": {"yum_repository": "AppStream"}}]}], "references": [{"type": "ADVISORY", "url": "https://errata.rockylinux.org/RLSA-2026:84584"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530272"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530296"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530305"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530333"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530389"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530396"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530447"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530458"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2530475"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2534404"}, {"type": "REPORT", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2534673"}, {"type": "ADVISORY", "url": "https://access.redhat.com/errata/RHSA-2026:84584"}], "credits": [{"name": "Rocky Enterprise Software Foundation"}, {"name": "Red Hat"}], "database_specific": {"license": "CC-BY-4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "source_advisory": "RHSA-2026:84584"}}