CVE-2026-34091

User localization leaked by AbuseFilter + EventStream PUBLISHED

Description (CNA)

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.

Affected (CNA)

Vendor / product	Versions
Wikimedia Foundation / MediaWiki	affected * before 1.43.7, 1.44.4, 1.45.2

CWE

CWE-200

References

https://phabricator.wikimedia.org/T411305

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.