Origin Validation Error Affecting webkitgtk4-jsc package, versions <0:2.52.1-1.amzn2


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-AMZN2-WEBKITGTK4JSC-16340741
  • published2 May 2026
  • disclosed25 Mar 2026

Introduced: 25 Mar 2026

CVE-2026-28861  (opens in a new tab)
CWE-346  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 webkitgtk4-jsc to version 0:2.52.1-1.amzn2 or higher.
This issue was patched in ALAS2-2026-3270.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkitgtk4-jsc package and not the webkitgtk4-jsc package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

A logic issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. A malicious website may be able to access script message handlers intended for other origins.

CVSS Base Scores

version 3.1