VULNERABILITY INTELLIGENCE

CVE-2026-18674

EPSS probability0.56%
CISA KEVNot currently listed
Published2026-08-17
Last modified2026-08-31

Description

On a Kong Mesh global control plane, resources received over the zone-to-global KDS sync are attributed using the in-band, sender-controlled ControlPlane.Identifier rather than the authenticated zone identity derived from the connection. Authenticated zones can have the global control plane store and re-distribute those resources as belonging to another zone. The result is a cross-zone isolation bypass: the holder of a single enrolled zone's credential can inject, attribute, and overwrite resources in another zone's namespace mesh-wide. The root cause lives in Kuma's open-source KDS sync code, which Kong Mesh's control plane is built on.

Weakness classification

  • 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb: CWE-345

Primary references