Dependency on Vulnerable Third-Party Component and Uncontrolled Resource Consumption vulnerability in Wikimedia Foundation Mediawiki - DataTransfer Extension allows Excessive Allocation.

This issue affects Mediawiki - DataTransfer Extension: from 1.46.0 before 1.47.0.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00411.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

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No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gerrit.wikimedia.org/r/q/Ibc4a9070c2425b690bc767a882e4c35046a39be7 cve-icon cve-icon
https://github.com/advisories/GHSA-xh5m-36r6-47m3 cve-icon cve-icon cve-icon
https://phabricator.wikimedia.org/T433275 cve-icon cve-icon
History

Thu, 01 Oct 2026 19:30:00 +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:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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

Type Values Removed Values Added
Description Dependency on Vulnerable Third-Party Component and Uncontrolled Resource Consumption vulnerability in Wikimedia Foundation Mediawiki - DataTransfer Extension allows Excessive Allocation. This issue affects Mediawiki - DataTransfer Extension: from 1.46.0 before 1.47.0.
Title DataTransfer depends on phpspreadsheet version vulnerable to CVE-2026-59933 (XLS/OLE memory exhaustion)
Weaknesses CWE-1395
CWE-400
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-10-01T18:13:42.072Z

Reserved: 2026-09-25T16:02:34.843Z

Link: CVE-2026-100242

cve-icon Vulnrichment

Updated: 2026-10-01T18:10:43.749Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-29T17:17:01.227

Modified: 2026-10-01T19:17:16.380

Link: CVE-2026-100242

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-01T21:00:17Z

Weaknesses