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
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| go-chi | chi | < 5.2.2 | 5.2.2 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | golang-github-go-chi-chi | 5.2.3-1 | — |
| Debian 13 | golang-github-go-chi-chi | No fix yet | — |
| Debian 12 | golang-github-go-chi-chi | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | golang-github-go-chi-chi | No fix yet | — |
| Ubuntu 26.04 LTS | golang-github-go-chi-chi | No fix yet | — |
| Ubuntu 24.04 LTS | golang-github-go-chi-chi | No fix yet | — |
| Ubuntu 22.04 LTS | golang-github-go-chi-chi | No fix yet | — |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | buf | 1.55.1-r1 | — |
| Wolfi rolling | caddy +2 | 2.10.0-r2 | — |
| Wolfi rolling | cloudflared | 2025.6.1-r1 | — |
| Wolfi rolling | gitness | 3.2.0-r2 | — |
| Wolfi rolling | gogatekeeper +1 | 3.5.0-r0 | — |
| Wolfi rolling | karma | 0.121-r3 | — |
| Wolfi rolling | kyverno-policy-reporter-ui +1 | 2.3.10-r2 | — |
| Wolfi rolling | rclone +1 | 1.70.1-r1 | — |
| Wolfi rolling | sftpgo | 2.6.6-r6 | — |
| Wolfi rolling | step | 0.28.6-r5 | — |
| Wolfi rolling | step-ca | 0.28.3-r5 | — |
| Wolfi rolling | step-issuer +1 | 0.9.8-r5 | — |
| Wolfi rolling | tkn | 0.41.0-r2 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/go-chi/chi/v5 | < 5.2.2 | 5.2.2 | GHSA-vrw8-fxc6-2r93 |
| Go | github.com/go-chi/chi/v5 | >= 5.2.1, < 5.2.2 | 5.2.2 | GO-2025-3770 |
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