CVE-2022-29970: Debian Linux

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

Sinatra before 2.2.0 does not validate that the expanded path matches public_dir when serving static files.

Affected products

• Debian Debian Linux: version 10.0 only
• Sinatrarb Sinatra: before 2.2.0 (fixed in 2.2.0)

Published 2022-05-02. Last modified 2026-06-17.