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.
Metrics
Affected Vendors & Products
References
History
Mon, 17 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Mon, 17 Aug 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Kong Mesh multi-zone: the global control plane attributes KDS-synced resources by an unvalidated in-band zone identifier | |
| Weaknesses | CWE-345 CWE-863 |
|
| References |
|
|
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: Kong
Published:
Updated: 2026-08-17T14:46:48.378Z
Reserved: 2026-08-03T15:20:40.972Z
Link: CVE-2026-18674
Updated: 2026-08-17T14:46:42.858Z
Status : Received
Published: 2026-08-17T13:16:51.820
Modified: 2026-08-17T15:16:54.670
Link: CVE-2026-18674
No data.
OpenCVE Enrichment
Updated: 2026-08-17T13:45:04Z