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

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...

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...