CVE-2026-18679

When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection. An on-path actor can intercept the dataplane authentication token and impersonate the control plane to the data plane, injecting a forged bootstrap configuration and taking over the proxy.

Score

CVSS 4.0 5.8 Medium

Status

Awaiting Analysis - 02762ae7-200e-4b20-9b2b-a77d5b8fc4cb

Published

2026-08-12

Last modified

2026-10-23

Weaknesses

CWE-295

Affected products

• Kong Mesh (Kong Inc.)

References

• https://github.com/kumahq/kuma/security/advisories/GHSA-wvmp-6r4v-j6cv
• https://github.com/kumahq/kuma/pull/16777
• https://developer.konghq.com/mesh/changelog/