CVE-2026-81303 — Hawtio-operator: hawtio-operator: routes/custom-host confused-deputy via spec.routehostname
A flaw was found in hawtio-operator. The operator holds routes/custom-host:create permission cluster-wide and writes the tenant-supplied spec.routeHostName value from the Hawtio…
Published: 2026-09-15 · CVSS: 6.3 · CVSS 3.1
A flaw was found in hawtio-operator. The operator holds routes/custom-host:create permission cluster-wide and writes the tenant-supplied spec.routeHostName value from the Hawtio custom resource directly into the Route spec without validation or authorization checks. A namespace edit user, who normally cannot set custom Route hostnames, can use the operator as a confused deputy to claim arbitrary externally-routable hostnames, enabling subdomain takeover and, in combination with the auto-grant OAuthClient, OAuth redirect hijack.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7