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CVE-2026-122132go-chi chi 5.2.2 through 5.5.0 Open Redirect via RedirectSlashes Middleware
go-chi chi 5.2.2 through 5.5.0 contains an open redirect vulnerability in the RedirectSlashes middleware that allows attackers to redirect victims to external hosts by embedding tab characters in request paths. Attackers can craft links with a URL-encoded tab, which browsers strip from the 301 Location header and resolve as a protocol-relative URL, bypassing the fix for CVE-2025-69725.
5.1 MEDIUMEPSS 0.26%Not in KEVNVD: Deferred
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 5.1 | MEDIUM | 4.0VulnCheck (CNA) | 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 |
| 6.1 | MEDIUM | 3.1VulnCheck (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Details
- CVE ID
- CVE-2026-122132
- Status
- Deferred
- Assigner (CNA)
- VulnCheck
- Published
- Nov 4, 2026
- Last modified
- 2026-11-05 20:17 UTC
- Weaknesses
- CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
Affected Products
As published by the CNA in the CVE record.
go-chichi1 version range
- 5.2.2 through 5.5.0
References
- github.com https://github.com/go-chi/chi
- github.com https://github.com/go-chi/chi/blob/v5.5.0/middleware/strip.go#L41-L69
- github.com https://github.com/go-chi/chi/pull/1238
- github.com https://github.com/go-chi/chi/security/advisories/GHSA-mqqf-5wvp-8fh8
- vulncheck.com https://www.vulncheck.com/advisories/go-chi-chi-5.2.2-through-5.5.0-open-redirect-via-redirectslashes-middleware