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 access to a data plane's port 9902, for example another pod on the cluster network, can read Envoy and data plane configuration without credentials: config dumps, cluster and listener lists, stats, and the mesh trust bundle. Exposure is read-only - destructive Envoy admin actions are blocked and private keys are not exposed.

CVSS

No CVSS.

References

Link	Resource
https://developer.konghq.com/mesh/changelog/
https://github.com/kumahq/kuma/pull/17317
https://github.com/kumahq/kuma/pull/17418
https://github.com/kumahq/kuma/security/advisories/GHSA-r9pv-x3pm-4r2w

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-12 19:17

Updated : 2026-08-31 19:22

NVD link : CVE-2026-18673

Mitre link : CVE-2026-18673

CVE.ORG link : CVE-2026-18673

JSON object : View

Products Affected

No product.

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-306

Missing Authentication for Critical Function

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