Description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows Excavation.

This issue affects Mediawiki - CentralAuth Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Published: 2026-09-29
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 30 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 30 Sep 2026 01:00:00 +0000

Type Values Removed Values Added
First Time appeared Wikimedia
Wikimedia mediawiki - Centralauth Extension
Vendors & Products Wikimedia
Wikimedia mediawiki - Centralauth Extension

Tue, 29 Sep 2026 17:00:00 +0000

Type Values Removed Values Added
Description Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation Mediawiki - CentralAuth Extension allows Excavation. This issue affects Mediawiki - CentralAuth Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Title CentralAuth exposes locally suppressed block information via globaluserinfo API and Special:CentralAuth (incomplete fix for CVE-2025-62669)
Weaknesses CWE-200
References

Subscriptions

Wikimedia Mediawiki - Centralauth Extension
cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-09-30T20:44:10.183Z

Reserved: 2026-09-25T16:03:14.587Z

Link: CVE-2026-100244

cve-icon Vulnrichment

Updated: 2026-09-30T20:44:04.230Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T17:17:01.453

Modified: 2026-09-30T21:16:53.457

Link: CVE-2026-100244

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T01:00:09Z

Weaknesses
  • CWE-200

    Exposure of Sensitive Information to an Unauthorized Actor