CVE-2026-18677

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...

CVE-2026-18673

When kuma-dp is configured with the Envoy admin API on a Unix domain socket, which is the default, its readiness service on TCP port 9902 - bound to all interfaces - forwards almost the entire Envoy admin API to any caller that can reach the port, with no authentication. An attacker with network...

CVE-2026-18676

The default kuma-cp configuration in Kong Mesh reveals the admin bootstrap token and signing keys to any webpage the operator visits while the control plane is reachable from their browser. Due to a CORS misconfiguration a cross-origin fetch from a malicious page returns the admin JWT and signing...

CVE-2026-18679 Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configured

When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection. An on-path actor can intercept the dataplane...

CVE-2026-18679

CVE-2026-18679 : Kong Mesh kuma-dp connects to the control plane over TLS without certificate verification when no CA is configured. This disables TLS peer verification for the data plane and sends the dataplane authentication token over the unverified channel. An on-path attacker can intercept t...

CVE-2026-18679 Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configured

When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection. An on-path actor can intercept the dataplane...

CVE-2026-18678 Kong Mesh: kumactl connects to the control plane without verifying the TLS certificate when no CA is configured

When an operator adds an HTTPS control plane profile to kumactl without providing a CA certificate, kumactl disables TLS verification and sends API tokens over the unverified connection. An attacker on the network path between the operator and the control plane can intercept user or admin API...

CVE-2026-18678 Kong Mesh: kumactl connects to the control plane without verifying the TLS certificate when no CA is configured

When an operator adds an HTTPS control plane profile to kumactl without providing a CA certificate, kumactl disables TLS verification and sends API tokens over the unverified connection. An attacker on the network path between the operator and the control plane can intercept user or admin API...

CVE-2026-18678

The CVE affects Kong Mesh/Kuma’s kumactl when adding an HTTPS control-plane profile without a CA certificate. The root cause is that kumactl disables TLS verification and sends API tokens over an unverified connection. This allows an attacker on the network path between the operator and the contr...

CVE-2026-18677

In Kong Mesh (universal mode), the XDS authenticator in kuma-cp validates the dataplane’s SPIFFE ID path template against the kuma.io/workload label only when the dataplane token is bound to a workload. Because workload binding is optional, a dataplane presenting a tags-bound token can register w...

EUVD-2026-57424

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...

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 validates that label only when the dataplane token is bound to a workload. Workload binding is optional, so a dataplane...

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 validates that label only when the dataplane token is bound to a workload. Workload binding is optional, so a dataplane...

CVE-2026-18676

The CVE-2026-18676 entry concerns Kong Mesh by exposing the admin bootstrap token and signing keys via a CORS misconfiguration in the default kuma-cp configuration. The vulnerability arises because a cross-origin fetch() from a malicious page can retrieve the admin JWT and signing material when t...

CVE-2026-18676 Kong Mesh: default control plane config leaks the admin token cross-origin via a CORS wildcard and localhost admin

The default kuma-cp configuration in Kong Mesh reveals the admin bootstrap token and signing keys to any webpage the operator visits while the control plane is reachable from their browser. Due to a CORS misconfiguration a cross-origin fetch from a malicious page returns the admin JWT and signing...

EUVD-2026-57423

The default kuma-cp configuration in Kong Mesh reveals the admin bootstrap token and signing keys to any webpage the operator visits while the control plane is reachable from their browser. Due to a CORS misconfiguration a cross-origin fetch from a malicious page returns the admin JWT and signing...

CVE-2026-18676 Kong Mesh: default control plane config leaks the admin token cross-origin via a CORS wildcard and localhost admin

The default kuma-cp configuration in Kong Mesh reveals the admin bootstrap token and signing keys to any webpage the operator visits while the control plane is reachable from their browser. Due to a CORS misconfiguration a cross-origin fetch from a malicious page returns the admin JWT and signing...

CVE-2026-18675 Kong Mesh: control plane denial of service via a malformed dataplane token with a non-string JWT kid

The dataplane token validator in kuma-cp performs an unchecked Go type assertion on the JWT kid header. A token whose kid is a JSON number decodes as a float64 and triggers a runtime panic before any signature, claims, or authorization check runs. The panic terminates the entire kuma-cp process,...

CVE-2026-18675

The vulnerability CVE-2026-18675 affects Kuma Kuma CP’s dataplane token validator, which uses an unchecked Go type assertion on the JWT kid header. If a token’s kid is a JSON number, it decodes as a float64 and triggers a runtime panic before signatures, claims, or authorization checks run. This ...

CVE-2026-18675 Kong Mesh: control plane denial of service via a malformed dataplane token with a non-string JWT kid

The dataplane token validator in kuma-cp performs an unchecked Go type assertion on the JWT kid header. A token whose kid is a JSON number decodes as a float64 and triggers a runtime panic before any signature, claims, or authorization check runs. The panic terminates the entire kuma-cp process,...