CVE-2026-118681
go-chi chi before 5.5.0 Authentication Bypass via SupressNotFound Middleware
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-288 |
| Vendor | go-chi |
| Product | chi |
| Published | Oct 28, 2026 |
Stay Ahead of the Next One
Get instant alerts for go-chi chi
Be the first to know when new low vulnerabilities affecting go-chi chi are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected Versions
go-chi / chi
0 < 5.5.0
References
Credits
🔍 dpfkdlemtp