RLSA-2026:84583

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Source
https://errata.rockylinux.org/RLSA-2026:84583
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:84583.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:84583
Upstream
CVE (11)
  • 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
Published
2026-10-20T12:05:07Z
Modified
2026-10-20T12:15:37Z
Severity
  • 9.6 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
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.

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-9.8.z] (JIRA:Rocky Linux-274394)

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.

Database specific 
{
    "license":  "CC-BY-4.0",
    "license_url":  "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory":  "RHSA-2026:84583"
}
References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:9 / webkit2gtk3

Package

Name
webkit2gtk3
Purl
pkg:rpm/rocky-linux/webkit2gtk3?distro=rocky-linux-9&epoch=0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
0:2.54.1-1.el9_8
Database specific
Show details 
{
    "yum_repository":  "AppStream"
}

Database specific

source 
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:84583.json"