CVE-2026-45021 Kuma: Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin

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...

CVE-2026-45021 Kuma: Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin

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...

CVE-2026-45021

Kuma CVE-2026-45021 describes a cross-origin exposure in the default kuma-cp config where CorsAllowedDomains: "." and LocalhostIsAdmin: true enable a browser-based attacker to fetch admin credentials from the control plane. Before versions 2.7.25, 2.9.15, 2.11.13, 2.12.10, and 2.13.5, a malicious...

Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin

Summary 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...

GHSA-3VCP-CHFH-F6R2 Default kuma-cp leaks admin token cross-origin via CORS wildcard + LocalhostIsAdmin

Summary 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...

PT-2026-41156

Name of the Vulnerable Software and Affected Versions Kuma versions prior to 2.7.25 Kuma versions prior to 2.9.15 Kuma versions prior to 2.11.13 Kuma versions prior to 2.12.10 Kuma versions prior to 2.13.5 Description The default kuma-cp configuration leaks the admin bootstrap token and signing...

CVE-2021-36532

Race condition vulnerability discovered in portfolioCMS 1.0 allows remote attackers to run arbitrary code via fileExt parameter to localhost/admin/uploads.php...