CVE-2026-34090 | THREATINT

Description

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.

PUBLISHED Reserved 2026-03-25 | Published 2026-05-11 | Updated 2026-05-11 | Assigner wikimedia-foundation

MEDIUM: 4.8CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/R:U

Problem types

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Product status

Default status

unaffected

1.45.0 (semver) before 1.45.2

affected

References

phabricator.wikimedia.org/T411366

cve.org (CVE-2026-34090)

nvd.nist.gov (CVE-2026-34090)

Download JSON