CVE-2025-43529 Affecting webkit2gtk3-jsc package, versions <0:2.50.4-1.el9_7


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

Exploit Maturity
Attacked
EPSS
8.89% (95th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALMALINUX9-WEBKIT2GTK3JSC-14551913
  • published23 Dec 2025
  • disclosed18 Dec 2025

Introduced: 18 Dec 2025

CVE-2025-43529  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 webkit2gtk3-jsc to version 0:2.50.4-1.el9_7 or higher.
This issue was patched in ALSA-2025:23700.

NVD Description

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

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 26. CVE-2025-14174 was also issued in response to this report.

CVSS Base Scores

version 3.1