CVE-2026-80180: Apache Software Foundation Apache Allura

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Stored XSS via markdown HTML processing in Apache Allura. This issue affects Apache Allura: from through 1.20.0. Users are recommended to upgrade to version 1.21.0, which fixes the issue.

Affected products

• Apache Software Foundation Apache Allura: up to and including 1.20.0

Published 2026-09-04. Last modified 2026-09-08.