CVE-2026-45021
Published: May 28, 2026
Modified: May 28, 2026
Description
Kuma is a modern Envoy-based service mesh that can run on every cloud across both Kubernetes and VMs. Prior to 2.7.25, 2.9.15, 2.11.13, 2.12.10, and 2.13.5, the default kuma-cp config leaks the admin bootstrap token and signing keys to any webpage the operator visits while the control plane is reachable from their browser. CorsAllowedDomains: [".*"] reflects any Origin, and LocalhostIsAdmin: true promotes requests from 127.0.0.1 to mesh-system:admin. A cross-origin fetch() from a malicious page returns the admin JWT and signing material. This vulnerability is fixed in 2.7.25, 2.9.15, 2.11.13, 2.12.10, and 2.13.5.
| Vendor | Product | Versions |
|---|---|---|
kumahq | kuma | affected < 2.7.25affected >= 2.9.0, < 2.9.15affected >= 2.11.0, < 2.11.13affected >= 2.12.0, < 2.12.10affected >= 2.13.0, < 2.13.5 |
References
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