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.

Attack Vector Adjacent Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
kumahq kuma affected
Version Status Constraints
< 2.7.26 affected —
>= 2.8.0, < 2.9.16 affected —
>= 2.10.0, < 2.11.14 affected —
>= 2.12.0, < 2.12.11 affected —
>= 2.13.0, < 2.13.7 affected —

No data.

No data.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-wvmp-6r4v-j6cv kuma-dp connects to control plane without verifying TLS certificate when no CA is configured
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/kumahq/kuma/commit/2d0fb382924598f8746bc85c896f50384675940f cve-icon cve-icon
https://github.com/kumahq/kuma/commit/85716397ffa404234bf365da0967eca0b0fa1870 cve-icon cve-icon
https://github.com/kumahq/kuma/commit/a256af4869ae7e0ebbc2a14dc231e04ac8df1ba3 cve-icon cve-icon
https://github.com/kumahq/kuma/commit/bb56ae628753aaec1f7846a514ab4edc35c0b569 cve-icon cve-icon
https://github.com/kumahq/kuma/commit/d4ae0c0151596be991897651f20c5cdf32de1980 cve-icon cve-icon
https://github.com/kumahq/kuma/commit/eb81494c2c7a5536e55c19cdde51b02a03b51e11 cve-icon cve-icon
https://github.com/kumahq/kuma/pull/16777 cve-icon cve-icon
https://github.com/kumahq/kuma/security/advisories/GHSA-wvmp-6r4v-j6cv cve-icon cve-icon
History

Tue, 15 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Kumahq
Kumahq kuma
Vendors & Products Kumahq
Kumahq kuma

Tue, 15 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 15 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
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.
Title kuma-dp connects to control plane without verifying TLS certificate when no CA is configured
Weaknesses CWE-295
References
Metrics cvssV4_0

{'score': 5.8, 'vector': 'CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-15T15:21:20.402Z

Reserved: 2026-06-08T14:00:43.571Z

Link: CVE-2026-52724

cve-icon Vulnrichment

Updated: 2026-09-15T15:20:34.771Z

cve-icon NVD

Status : Received

Published: 2026-09-15T15:17:17.110

Modified: 2026-09-15T16:17:12.540

Link: CVE-2026-52724

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-15T16:30:11Z

Weaknesses