CVE-2026-118681
CVE-2026-118681 · go-chi chi before 5.5.0 Authentication Bypass via SupressNotFound Middleware
This page contains facts from public vulnerability sources. Check the original advisory before updating.
go-chi chi before 5.5.0 contains an authentication bypass in middleware.SupressNotFound, which calls Match with the live routing context and leaves a mounted router's parameter and child suffix in place for dispatch against the outer router. Unauthenticated attackers can request a mounted path whose suffix matches an outer public route, skipping the mounted authentication middleware and retrieving tenant-scoped data when that outer handler trusts the retained mount parameter.
CVSS 6.3 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
chi
- Versions
- ≥ 0, < 5.5.0: Affected (semver)
- 5.5.0: Not affected (semver)
Update to 5.5.0
golang-github-go-chi-chi Debian:12
- Versions
- 5.0.7-1
- 5.1.0-1
- 5.2.0-1
- 5.2.3-1
- 5.2.5-1
- 5.3.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-go-chi-chi Debian:13
- Versions
- 5.2.0-1
- 5.2.3-1
- 5.2.5-1
- 5.3.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-go-chi-chi Debian:14
- Versions
- 5.2.0-1
- 5.2.3-1
- 5.2.5-1
- 5.3.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-go-chi-chi Ubuntu:22.04:LTS
- Versions
- 1.5.1-2
- 5.0.7-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-go-chi-chi Ubuntu:24.04:LTS
- Versions
- 5.0.7-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-go-chi-chi Ubuntu:26.10
- Versions
- 5.2.3-1
- 5.3.0-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-github-go-chi-chi Ubuntu:26.04:LTS
- Versions
- 5.2.0-1
- 5.2.3-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published