CVE-2025-26416 Affecting webkitgtk4-jsc package, versions <0:2.54.0-1.amzn2.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.56% (45th percentile)

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  • Snyk IDSNYK-AMZN2-WEBKITGTK4JSC-20847765
  • published13 Oct 2026
  • disclosed2 Sept 2025

Introduced: 2 Sep 2025

CVE-2025-26416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 webkitgtk4-jsc to version 0:2.54.0-1.amzn2.0.1 or higher.
This issue was patched in ALAS2-2026-3987.

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.

In initializeSwizzler of SkBmpStandardCodec.cpp, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS Base Scores

version 3.1