CVE-2026-34088
Received Received - Intake
Exposure of Sensitive Information in MediaWiki

Publication date: 2026-05-11

Last updated on: 2026-05-11

Assigner: wikimedia-foundation

Description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This issue affects MediaWiki: from * before 1.43.7, 1.44.4, 1.45.2.
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Published
2026-05-11
Last Modified
2026-05-11
Generated
2026-06-21
AI Q&A
2026-05-11
EPSS Evaluated
2026-06-19
NVD
CVE-2026-34088
EUVD
EUVD-2026-29060
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
wikimedia mediawiki to 1.43.7 (exc)
wikimedia mediawiki 1.44.4
wikimedia mediawiki 1.45.2
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
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Executive Summary

This vulnerability is an Exposure of Sensitive Information to an Unauthorized Actor in Wikimedia Foundation's MediaWiki software. It affects versions before 1.43.7, 1.44.4, and 1.45.2.

Impact Analysis

The vulnerability could allow unauthorized actors to access sensitive information that should be protected, potentially leading to information disclosure.

Compliance Impact

The vulnerability involves exposure of sensitive information to an unauthorized actor in Wikimedia Foundation MediaWiki.

Such exposure of sensitive information could potentially impact compliance with data protection regulations like GDPR and HIPAA, which require protection of personal and sensitive data from unauthorized access.

However, specific details on how this vulnerability affects compliance with these standards are not provided in the available information.

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