23 Oct 2026 15:48:27 UTC
Bastillion Authentication Bypass via Path-Prefix Routing Mismatch
cve-program · CVE-2026-75627 · Published
CVE-2026-75627
Bastillion Authentication Bypass via Path-Prefix Routing Mismatch
CVSS 4.0 9.3 CRITICALCVSS 3.1 9.8 CRITICALCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-75627
PublishedBastillion fails to properly validate request URI paths in its controller dispatcher, allowing unauthenticated attackers to bypass authentication filters by prefixing requests with arbitrary path segments. Attackers can access administrative controllers to read user listings, create manager accounts, and register managed systems, gaining control over SSH access to the managed fleet.
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