CVE-2026-18677 - Kong Mesh: a dataplane token without a workload binding can claim any workload's SPIFFE identity

CVE-2026-18677 - Kong Mesh: a dataplane token without a workload binding can claim any workload's SPIFFE identity

https://cvefeed.io/rssfeed/latest.atom / Wed, 08/12/2026 - 22:26
CVE ID :CVE-2026-18677
Published : Aug. 12, 2026, 6:47 p.m. | 41 minutes ago
Description :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.
Severity: 6.0 | MEDIUM
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