# CVE-2025-71405

## Summary

- **CVE ID:** CVE-2025-71405
- **Severity:** MEDIUM
- **CVSS Score:** 5.1 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-601
- **Published:** Aug 14, 2026
- **Last Modified:** Aug 14, 2026

## Description

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 (0)
- go-chi — chi (5.2.2)

## References

- [CNA](https://github.com/go-chi/chi/security/advisories/GHSA-vrw8-fxc6-2r93)
- [CNA](https://www.vulncheck.com/advisories/go-chi-chi-before-open-redirect-via-redirectslashes)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.31%
- **EPSS Percentile:** 23.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._