nebula-mesh: API endpoints lack ownership checks, enabling cross-operator privilege escalation

The /api/v1/ route surface trusts the bearer token alone for authorisation on most endpoints. The codebase itself admits this at internal/api/hosts.go:384: "API trusts the bearer token for authorisation; per-CA ownership is enforced only in the Web layer." The Web UI gates state-changing routes...

GHSA-598G-H2VC-H5VG nebula-mesh: API endpoints lack ownership checks, enabling cross-operator privilege escalation

The /api/v1/ route surface trusts the bearer token alone for authorisation on most endpoints. The codebase itself admits this at internal/api/hosts.go:384: "API trusts the bearer token for authorisation; per-CA ownership is enforced only in the Web layer." The Web UI gates state-changing routes...