CVE-2026-18677 — Kong Mesh: a dataplane token without a workload binding can claim any workload's SPIFFE identity
In Kong Mesh running in universal mode with a MeshIdentity whose SPIFFE ID path template derives from the dataplane's kuma.io/workload label, the XDS authenticator in kuma-cp va…
Published: 2026-08-12 · CVSS: 6.0 · CVSS 4.0
In Kong Mesh running in universal mode with a MeshIdentity whose SPIFFE ID path template derives from the dataplane's kuma.io/workload label, the XDS authenticator in kuma-cp validates that label only when the dataplane token is bound to a workload. Workload binding is optional, so a dataplane presenting a tags-bound token can register with kuma.io/workload set to any value and obtain another workload's SPIFFE identity.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7