CVE-2026-34786 | Rack up to 2.2.22/3.1.20/3.2.5 Rack::Static incorrect behavior order: validate before canonicalize (GHSA-q4qf-9j86-f5mh)
A vulnerability was found in Rack up to 2.2.22/3.1.20/3.2.5. It has been classified as problematic. Affected is the function Rack::Static. The manipulation leads to incorrect behavior order: validate before canonicalize.
This vulnerability is uniquely identified as CVE-2026-34786. The attack is possible to be carried out remotely. No exploit exists.
Upgrading the affected component is recommended.