CVE-2019-12473: Debian Linux

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

Wikimedia MediaWiki 1.27.0 through 1.32.1 might allow DoS. Passing invalid titles to the API could cause a DoS by querying the entire watchlist table. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

Affected products

• Debian Debian Linux: version 9.0 only
• Mediawiki Mediawiki: from 1.27.0, before 1.27.6 (fixed in 1.27.6); from 1.30.0, before 1.30.2 (fixed in 1.30.2); from 1.31.0, before 1.31.2 (fixed in 1.31.2); from 1.32.0, before 1.32.2 (fixed in 1.32.2)

Published 2019-07-10. Last modified 2026-06-17.