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CVE-2026-34090

4.8 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 4.8 · mediawikiNVD modified 2026-10-26 18:10

Affected (CPE criteria) 1

  • cpe:2.3:a:mediawiki:checkuser:*:*:*:*:*:mediawiki:*:*

References 1