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MEDIUM

webkitgtk: An app may be able to access sensitive user data

Published May 11, 2026

Description

This issue was addressed with improved data protection. This issue is fixed in Safari 26.5, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, visionOS 26.5. An app may be able to access sensitive user data.

Affected products

Remediation

Red Hat statement

To exploit this flaw, an attacker needs to trick a user into processing or loading malicious web content. Due to this reason, this flaw has been rated with a moderate severity.

Red Hat mitigation

Do not process or load untrusted web content with WebKitGTK. In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-data-server, glade, gnome-boxes, gnome-initial-setup, gnome-online-accounts, gnome-shell, shotwell, sushi and yelp. This vulnerability can only be exploited when these packages are installed in the system and being used via a graphical interface to process untrusted web content, via GNOME for example. In gnome-shell, the vulnerability can be exploited by an attacker from the local network without user interaction. To mitigate this vulnerability, consider removing these packages. Note that some of these packages are required by GNOME, removing them will also remove GNOME and other packages, breaking functionality. However, the server can still be used via the terminal interface. Additionally, WebKitGTK3 is not required by any package. Therefore, it can be removed without consequences or break of functionality.

Metrics

Weaknesses (1)

CWE-200

Exposure of Sensitive Information

References (10)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner apple
Published May 11, 2026
Updated Aug 17, 2026
Reserved Mar 3, 2026
Link CVE-2026-28958
CISA Vulnrichment
Updated May 12, 2026
NVD
Status Modified
Modified Aug 17, 2026
Link CVE-2026-28958
Red Hat
Severity Moderate
Public date Jun 2, 2026
Links CVE-2026-28958 - Bugzilla