CVE-2019-10906: Canonical Ubuntu Linux

High severity, CVSS 8.6. EPSS: 3.5% chance of exploitation in the next 30 days.

In Pallets Jinja before 2.10.1, str.format_map allows a sandbox escape.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only; version 19.04 only
• Fedoraproject Fedora: version 28 only; version 29 only; version 30 only
• Opensuse Leap: version 15.0 only; version 42.3 only
• Palletsprojects Jinja: before 2.10.1 (fixed in 2.10.1)
• Red Hat Software Collections: version 1.0 only

Published 2019-04-07. Last modified 2026-06-17.