CVE-2026-18674 | BDVDB-2026-360440 Detail
KongKong Mesh
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.
Impact#
Cross-zone isolation bypass
Weaknesses#
References#
- https://github.com/kumahq/kuma/security/advisories/GHSA-m58j-fjmc-h3g4
- https://github.com/kumahq/kuma/pull/17456
- https://github.com/kumahq/kuma/pull/17458
- https://github.com/kumahq/kuma/pull/17461
- https://github.com/kumahq/kuma/pull/17463
- https://github.com/kumahq/kuma/pull/17462
- https://github.com/kumahq/kuma/pull/17460
- https://github.com/kumahq/kuma/pull/17459
- https://developer.konghq.com/mesh/changelog/
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.