CVE-2025-71405: Go-Chi Chi

Medium severity, CVSS 5.1. EPSS: 0.4% chance of exploitation in the next 30 days.

chi versions before v5.2.2 contain an open redirect vulnerability in the RedirectSlashes middleware function that uses the Host header to construct redirect URLs. Attackers can manipulate the Host header to redirect users to arbitrary hosts, enabling phishing attacks and credential theft.

Affected products

• Go-Chi Chi: before 5.2.2 (fixed in 5.2.2)

Published 2026-08-14. Last modified 2026-10-08.