MEDIUM 5.1 NVD
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
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 material.
References
- https://developer.konghq.com/mesh/changelog/
- https://github.com/kumahq/kuma/pull/16416
- https://github.com/kumahq/kuma/pull/16423
- https://github.com/kumahq/kuma/pull/16424
- https://github.com/kumahq/kuma/pull/16425
This medium severity vulnerability with a CVSS score of 5.1 was published on 2026-08-12 via NVD.
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