Medium 5.8Published Sep 15, 2026

CVE-2026-52724kuma-dp connects to control plane without verifying TLS certificate when no CA is configured

Updated under an hour ago (2026-10-19 10:00 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for kumahq kuma

Exploited in the last 30 days

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.

CVSS: 5.8 MEDIUM (v4.0, CNA)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
Weakness (CWE): CWE-295
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Sep 15, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

kumahq kuma kumahq:kuma (from the name)	before 2.7.26; from 2.8.0, < 2.9.16; from 2.10.0, < 2.11.14; from 2.12.0, < 2.12.11; from 2.13.0, < 2.13.7	CNA record

References

https://github.com/kumahq/kuma/security/advisories/GHSA-wvmp-6r4v-j6cvx-refsource-confirm
https://github.com/kumahq/kuma/pull/16777x-refsource-misc
https://github.com/kumahq/kuma/commit/2d0fb382924598f8746bc85c896f50384675940fx-refsource-misc
https://github.com/kumahq/kuma/commit/85716397ffa404234bf365da0967eca0b0fa1870x-refsource-misc
https://github.com/kumahq/kuma/commit/a256af4869ae7e0ebbc2a14dc231e04ac8df1ba3x-refsource-misc
https://github.com/kumahq/kuma/commit/bb56ae628753aaec1f7846a514ab4edc35c0b569x-refsource-misc
https://github.com/kumahq/kuma/commit/d4ae0c0151596be991897651f20c5cdf32de1980x-refsource-misc
https://github.com/kumahq/kuma/commit/eb81494c2c7a5536e55c19cdde51b02a03b51e11x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.