CVE-2026-58026

Name of the Vulnerable Software and Affected Versions MediaWiki versions prior to 1.46.0 MediaWiki versions prior to 1.45.4 MediaWiki versions prior to 1.44.6 MediaWiki versions prior to 1.43.9

Description An issue exists in the includes/Parser/Parser.Php file that allows the exposure of sensitive information to unauthorized actors. This occurs because the $wgNonincludableNamespaces variable can be bypassed by embedding a redirect in other namespaces.

Recommendations Update to version 1.46.0 or later. Update to version 1.45.4 or later. Update to version 1.44.6 or later. Update to version 1.43.9 or later.