CVE-2026-18677

In Kong Mesh running in universal mode with a MeshIdentity whose SPIFFE ID path template derives from the dataplane's kuma.io/workload label, the XDS authenticator in kuma-cp validates that label only when the dataplane token is bound to a workload. Workload binding is optional, so a dataplane presenting a tags-bound token can register with kuma.io/workload set to any value and obtain another workload's SPIFFE identity.

CVSS

No CVSS.

References

Link	Resource
https://developer.konghq.com/mesh/changelog/
https://github.com/kumahq/kuma/pull/17474
https://github.com/kumahq/kuma/pull/17502
https://github.com/kumahq/kuma/pull/17503
https://github.com/kumahq/kuma/security/advisories/GHSA-744g-c785-x65q

Configurations

No configuration.

History

23 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) En Kong Mesh ejecutándose en modo universal con una MeshIdentity cuyo patrón de ruta de ID SPIFFE deriva de la etiqueta kuma.io/workload del dataplane, el autenticador XDS en kuma-cp valida esa etiqueta solo cuyo el token del dataplane está vinculado a una carga de trabajo. La vinculación de la carga de trabajo es opcional, por lo que un dataplane que presenta un token vinculado a etiquetas puede registrarse con kuma.io/workload establecido en cualquier valor y obtener la identidad SPIFFE de otra carga de trabajo.

Information

Published : 2026-08-12 19:17

Updated : 2026-10-23 19:10

NVD link : CVE-2026-18677

Mitre link : CVE-2026-18677

CVE.ORG link : CVE-2026-18677

JSON object : View

Products Affected

No product.

CWE

CWE-290

Authentication Bypass by Spoofing

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