CVE-2019-19191: Shibboleth Service Provider

High severity, CVSS 7.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Shibboleth Service Provider (SP) 3.x before 3.1.0 shipped a spec file that calls chown on files in a directory controlled by the service user (the shibd account) after installation. This allows the user to escalate to root by pointing symlinks to files such as /etc/shadow.

Affected products

• Shibboleth Service Provider: from 3.0.0, before 3.1.0 (fixed in 3.1.0)

Published 2019-11-21. Last modified 2026-06-17.