Advisory severityMedium6.5Red Hat Linux

Medium [CVE-2026-64753] Processing maliciously crafted web content may disclose sensitive user information

This medium-severity Red Hat Linux advisory covers CVE-2026-64753; related products: Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 8.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-64753 Source published Sep 14, 2026Source updated Sep 14, 2026

VulniPulse record published Sep 17, 2026Record updated Oct 1, 2026

CVE-2026-64753

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Summary

Processing maliciously crafted web content may disclose sensitive user information. Red Hat rates this moderate (CVSS 6.5).

Weakness: CWE-359. Red Hat lists fixing advisory RHSA-2026:69098 with package webkit2gtk3-0:2.54.0-1.el9_8, webkit2gtk3-0:2.54.0-1.el8_10.

Affected products named by the advisory: Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 8.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Fixed versions

webkit2gtk3-0:2.54.0-1.el9_8
webkit2gtk3-0:2.54.0-1.el8_10
RHSA-2026:69098

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Mitigation checklist

Recommended fix / 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.

Official advisory · high-confidence parse· fetched 16 days ago·verify at source

Discussion(0)

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