CVE-2026-34087 MEDIUM

CVE-2026-34087: Users API leaks whether privileged users have their user groups disabled for lack of 2FA

Vendor Wikimedia Foundation
Product OATHAuth
Weakness CWE-200 · Info exposure
Published May 11, 2026
Last update May 11, 2026
View on NVD All CVEs

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/S:N/AU:Y/R:A/RE:M

What the vulnerability does

01Description

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

Key dates

02Disclosure timeline

May 11, 2026 CVE published
May 11, 2026 Record updated