CVE-2026-71208

—

CVSS 3.1

6.5 medium

EPSS

<1%p11

Published

Aug 5, 2026 (Aug 5, 2026)

Modified

Aug 26, 2026

Description

KubeSphere's cluster-controller reconciliation (pkg/utils/clusterclient/clusterclient.go, addCluster) processes every Cluster custom resource's connection configuration and immediately calls Discovery.ServerVersion against the CRD-specified Kubernetes API endpoint, which is parsed only for URL syntax (url.Parse) with no allow/deny-list for loopback, RFC1918 private ranges, link-local, or cloud-metadata addresses (e.g. 169.254.169.254).

Weakness: CWE-918
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (0.2%)

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