CVE-2026-58026 - Vulnerability Details - OpenCVE

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Parser/Parser.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

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References

Link	Providers
https://phabricator.wikimedia.org/T299359

History

Wed, 01 Jul 2026 16:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 15:30:00 +0000

Type	Values Removed	Values Added
Description		Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Parser/Parser.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
Title		$wgNonincludableNamespaces can be bypassed by embedding redirect in other namespaces
Weaknesses		CWE-200
References		https://phabricator.wikimedia.org/T299359
Metrics		cvssV4_0 `{'score': 0, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N'}`

MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published: 2026-07-01T15:10:34.559Z

Updated: 2026-07-01T15:50:17.256Z

Reserved: 2026-06-27T13:32:37.577Z

Link: CVE-2026-58026

Vulnrichment

Updated: 2026-07-01T15:50:11.643Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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