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CVE-2026-18679GHSA-WVMP-6R4V-J6CVGO-2026-6013

Kong Mesh: kuma-dp connects to the control plane without verifying the TLS certificate when no CA is configured

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.7.26, 2.9.16, 2.11.14, 2.12.11, 2.13.7
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Kong Inc. Kong Mesh

    fixed in 2.7.26; From 2.8.0 · fixed in 2.9.16; From 2.10.0 · fixed in 2.11.14; From 2.12.0 · fixed in 2.12.11; From 2.13.0 · fixed in 2.13.7

  • github.com/kumahq/kuma/v2Go

    fixed in 2.7.26

  • github.com/kumahq/kuma/v2Go

    From 2.8.0 · fixed in 2.9.16

  • github.com/kumahq/kuma/v2Go

    From 2.10.0 · fixed in 2.11.14

  • github.com/kumahq/kuma/v2Go

    From 2.12.0 · fixed in 2.12.11

  • github.com/kumahq/kuma/v2Go

    From 2.13.0 · fixed in 2.13.7

  • github.com/kumahq/kumaGo

    through 1.8.1

  • github.com/kumahq/kumaGo

    All versions

  • github.com/kumahq/kuma/v2Go

    fixed in 2.7.26; From 2.9.13 · fixed in 2.11.14; From 2.12.4 · fixed in 2.12.11; From 2.13.0 · fixed in 2.13.7

References 3

GitHub · kumahq/kuma

developer.konghq.com