CVEvulnerability

CVE-2026-18674

7.0 HIGH Published 2026-08-17 Modified 2026-08-31 Official page ↗
Status
Awaiting Analysis
Published
2026-08-17
Last modified
2026-08-31
Assigner
02762ae7-200e-4b20-9b2b-a77d5b8fc4cb
CVSS 4.0 (02762ae7-200e-4b20-9b2b-a77d5b8fc4cb)
7.0 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-345, CWE-863

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.

Related

Weakness · CWE (2)

  • CWE-345 Insufficient Verification of Data Authenticity weakness
  • CWE-863 Incorrect Authorization weakness

References