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CVE-2026-6720

Calicoctl leaks cluster credentials to stderr when verbose logging is enabled PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Tigera / Calicoaffected 0 before 3.32.0
Tigera / Calico Enterpriseaffected 0 before 3.21.7; unaffected 3.22.3
Tigera / Calico Cloudaffected 0 before 22.4.0

CWE

CWE-532

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.