CVE-2026-6720

CVE-2026-6720 · Calicoctl leaks cluster credentials to stderr when verbose logging is enabled

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

When calicoctl is invoked with --log-level=info or --log-level=debug, the client prints the full contents of its loaded connection-configuration struct to stderr in a single log line. The struct embeds every credential calicoctl uses to talk to the cluster — inline kubeconfig (with bearer token), Kubernetes API bearer token, etcd password, and inline PEM-encoded etcd client certificate and key. Any reader of that stderr stream — CI job logs, session-recording archives, shared support-ticket transcripts, or local filesystem viewers on the host that ran calicoctl — can extract these credentials with zero Kubernetes privilege. calicoctl's default log level is panic, so this issue only triggers when verbose logging is explicitly enabled.

CVSS 7.2 · Alta · EPSS 0,2% · Corrección disponible

Publicación

2026-05-28T15:47:42.519Z

Actualización

2026-05-28T17:04:11.659Z

Pila tecnológica: containers

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