Out-of-bounds Write Affecting webkit2gtk3 package, versions <0:2.54.1-1.el9_8


Severity

Recommended
critical

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.36% (29th percentile)

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  • Snyk IDSNYK-ALMALINUX9-WEBKIT2GTK3-21277946
  • published20 Oct 2026
  • disclosed19 Oct 2026

Introduced: 19 Oct 2026

NewCVE-2026-87621  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 webkit2gtk3 to version 0:2.54.1-1.el9_8 or higher.
This issue was patched in ALSA-2026:84583.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk3 package and not the webkit2gtk3 package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

Out of bounds write in ANGLE in Google Chrome on on Windows prior to 153.0.8010.36 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS Base Scores

version 3.1