High [CVE-2026-84635] Processing maliciously crafted web content may lead to an unexpected process termination
This high-severity Red Hat Linux advisory covers CVE-2026-84635; related products: Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 8.
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Summary
Processing maliciously crafted web content may lead to an unexpected process termination. Red Hat rates this important (CVSS 8.8).
Weakness: CWE-664. 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 13 days ago·verify at source
- 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 13 days ago·verify at source
Mitigation checklist
- 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 13 days ago·verify at source
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