CVE-2026-118681
Low · 3.7CVSS
3.7
EPSS
0.2%
Published
Oct 28, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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