CVE-2026-58026 $wgNonincludableNamespaces can be bypassed by embedding redirect in other namespaces

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Parser/Parser.Php. This issue affects MediaWiki: from before 1.46.0, 1.45.4, 1.44.6, 1.43.9...