{"id":"CVE-2026-118681","published":"2026-10-28T19:17:34.460","lastModified":"2026-10-28T19:17:35.110","description":"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.","cvssScore":3.7,"cvssSeverity":"LOW","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-288"],"vendors":[],"products":[],"references":[{"url":"https://github.com/go-chi/chi/security/advisories/GHSA-rqrp-8cg2-5958","tags":[]},{"url":"https://www.vulncheck.com/advisories/go-chi-chi-before-5.5.0-authentication-bypass-via-supressnotfound-middleware","tags":[]}],"exploitRefs":[{"url":"https://github.com/go-chi/chi/security/advisories/GHSA-rqrp-8cg2-5958","tags":[]}],"hasPoc":true,"ai":null}