CVE-2022-29361: Palletsprojects Werkzeug

Critical severity, CVSS 9.8. EPSS: 8.1% chance of exploitation in the next 30 days.

Improper parsing of HTTP requests in Pallets Werkzeug v2.1.0 and below allows attackers to perform HTTP Request Smuggling using a crafted HTTP request with multiple requests included inside the body. NOTE: the vendor's position is that this behavior can only occur in unsupported configurations involving development mode and an HTTP server from outside the Werkzeug project

Affected products

• Palletsprojects Werkzeug: up to and including 2.1.0

Published 2022-05-25. Last modified 2026-06-17.