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        "assignerOrgId": "e6d453f4-3dae-4941-bcea-9af25f4e824d",
        "state": "PUBLISHED",
        "assignerShortName": "Tigera",
        "dateReserved": "2026-04-20T19:31:31.065Z",
        "datePublished": "2026-05-28T15:47:42.519Z",
        "dateUpdated": "2026-05-28T17:04:11.659Z"
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            },
            "title": "Calicoctl leaks cluster credentials to stderr when verbose logging is enabled",
            "datePublic": "2026-05-28T16:00:00.000Z",
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                            "cweId": "CWE-532",
                            "description": "CWE-532",
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                    "descriptions": [
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                            "lang": "en",
                            "value": "CAPEC-150 Collect Data from Common Resource Locations"
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                    "vendor": "Tigera",
                    "product": "Calico",
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                {
                    "lang": "en",
                    "value": "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.",
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            "references": [
                {
                    "url": "https://github.com/projectcalico/calico/pull/12535",
                    "tags": [
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                    "url": "https://github.com/projectcalico/calico/pull/12536",
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                    "lang": "en",
                    "value": "Behnam Shobiri",
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                    "lang": "en",
                    "value": "Behnam Shobiri",
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