AUGUST 15, 2026
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Case File

CVE-2026-18677

MEDIUM · CVSS 6 EPSS 0.31% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-12 · Last synced 2026-08-15

CyberRota Analysis

AI-Generated

Kong Mesh in universal mode is vulnerable due to improper validation of the kuma.io/workload label in the XDS authenticator, allowing a malicious dataplane to impersonate another workload by presenting a tags-bound token. This could lead to unauthorized access to sensitive resources and compromise the integrity of the service mesh. Organizations using Kong Mesh should prioritize this vulnerability to prevent potential exploitation and ensure secure workload identity management.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-18677
Severity
MEDIUM
CVSS
6
EPSS
0.31%

Original NVD Description

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.