CVE-2026-34090

Suggested investigations: Handle suppressed usernames PUBLISHED

Description (CNA)

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation CheckUser. This issue affects CheckUser: from 1.45.0 before 1.45.2.

Affected (CNA)

Vendor / product	Versions
Wikimedia Foundation / CheckUser	affected 1.45.0 before 1.45.2

CWE

CWE-200

References

https://phabricator.wikimedia.org/T411366

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.