CVE-2019-13038: Canonical Ubuntu Linux

Medium severity, CVSS 6.1. EPSS: 1.4% chance of exploitation in the next 30 days.

mod_auth_mellon through 0.14.2 has an Open Redirect via the login?ReturnTo= substring, as demonstrated by omitting the // after http: in the target URL.

Affected products

• Canonical Ubuntu Linux: version 18.04 only; version 18.10 only
• Fedoraproject Fedora: version 30 only; version 31 only
• Mod Auth Mellon Project Mod Auth Mellon: up to and including 0.14.2
• Oracle ZFS Storage Appliance Kit: version 8.8 only

Published 2019-06-29. Last modified 2026-06-17.