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CVE-2026-18676

Kong Mesh: default control plane config leaks the admin token cross-origin via a CORS wildcard and localhost admin PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Kong Inc. / Kong Meshaffected 0 before 2.7.25; affected 2.8.0 before 2.9.15; affected 2.10.0 before 2.11.13; affected 2.12.0 before 2.12.10; affected 2.13.0 before 2.13.5

CWE

CWE-346, CWE-942

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.