Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://developer.konghq.com/mesh/changelog/
- https://github.com/kumahq/kuma/pull/16777
- https://github.com/kumahq/kuma/security/advisories/GHSA-wvmp-6r4v-j6cv
FAQ
What is CVE-2026-18679?
CVE-2026-18679 is a documented vulnerability. 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 tok...
How severe is CVE-2026-18679?
CVSS scoring is not yet available for CVE-2026-18679. Check NVD for updates.
Is there a patch for CVE-2026-18679?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.