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CVE PROGRAM SOURCE RECORD5.8 Medium

CVE-2026-52724

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

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Kuma is a modern Envoy-based service mesh that can run on every cloud across both Kubernetes and VMs. Prior to 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7, Universal mode kuma-dp connections to an HTTPS control plane disable TLS peer verification when --ca-cert-file is not supplied and KUMA_CONTROL_PLANE_CA_CERT is unset. The dataplane authentication token is sent over the unverified connection, allowing an on-path attacker to intercept the token, impersonate the control plane, inject a forged bootstrap configuration, and take over the proxy. Standard Kubernetes installations created by kumactl install control-plane or the official Helm chart are unaffected because the mutating admission webhook injects KUMA_CONTROL_PLANE_CA_CERT into each sidecar. This issue is fixed in versions 2.7.26, 2.9.16, 2.11.14, 2.12.11, and 2.13.7.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

kumahq kuma

  • < 2.7.26affected
  • >= 2.8.0, < 2.9.16affected
  • >= 2.10.0, < 2.11.14affected
  • >= 2.12.0, < 2.12.11affected
  • >= 2.13.0, < 2.13.7affected

References