Vulnerability · Published Aug 14, 2026 · Assigned by VulnCheck
CVE-2025-71405go-chi chi before v5.2.2 Open Redirect via RedirectSlashes
Medium 5.1
In plain English
A medium-severity open redirect in chi from go-chi. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)5.1Medium
Exploit odds (30 days)0.4%top 66.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | golang-github-go-chi-chi | no fix listed | DEBIAN-CVE-2025-71405 |
| Debian:13 | golang-github-go-chi-chi | no fix listed | DEBIAN-CVE-2025-71405 |
| Debian:14 | golang-github-go-chi-chi | 5.2.3-1 | DEBIAN-CVE-2025-71405 |
| Go | github.com/go-chi/chi/v5 | 5.2.2 | GHSA-vrw8-fxc6-2r93 |
| Go | github.com/go-chi/chi/v5 | 5.2.2 | GO-2025-3770 |
| Ubuntu:22.04:LTS | golang-github-go-chi-chi | no fix listed | UBUNTU-CVE-2025-71405 |
| Ubuntu:24.04:LTS | golang-github-go-chi-chi | no fix listed | UBUNTU-CVE-2025-71405 |
| Ubuntu:26.04:LTS | golang-github-go-chi-chi | no fix listed | UBUNTU-CVE-2025-71405 |
| Ubuntu:26.10 | golang-github-go-chi-chi | no fix listed | UBUNTU-CVE-2025-71405 |
Affected products (as reported)
Weakness: CWE-601 · Vector: 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
References
- GitHub Security Advisory (GHSA-vrw8-fxc6-2r93) vendor-advisory
- VulnCheck Advisory: go-chi chi before v5.2.2 Open Redirect via RedirectSlashes third-party-advisory