CVE-2026-100242: Wikimedia Foundation Mediawiki - Datatransfer Extension

High severity, CVSS 7.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Wikimedia Foundation Mediawiki - Datatransfer Extension: from 1.46.0, before 1.47.0 (fixed in 1.47.0)

Published 2026-09-29. Last modified 2026-10-01.