{"id":"CVE-2021-41266","published":"2021-11-15T20:20:10Z","modified":"2024-08-04T03:08:31Z","title":"Authentication bypass issue in the Operator Console","vendor":"minio","product":"console","tier":"core","eol":null,"affectedVersions":[{"vendor":"minio","product":"console","versions":["< 0.12.3"]}],"description":{"text":"Minio console is a graphical user interface for the for MinIO operator. Minio itself is a multi-cloud object storage project. Affected versions are subject to an authentication bypass issue in the Operator Console when an external IDP is enabled. All users on release v0.12.2 and before are affected and are advised to update to 0.12.3 or newer. Users unable to upgrade should add automountServiceAccountToken: false to the operator-console deployment in Kubernetes so no service account token will get mounted inside the pod, then disable the external identity provider authentication by unset the CONSOLE_IDP_URL, CONSOLE_IDP_CLIENT_ID, CONSOLE_IDP_SECRET and CONSOLE_IDP_CALLBACK environment variable and instead use the Kubernetes service account token.","provenance":"source","from":"CVE.org"},"summary":{"text":"The Operator Console component of the MinIO Console product (the graphical interface for the MinIO Operator) contains an authentication bypass issue that occurs when an external identity provider is enabled, affecting release v0.12.2 and earlier. An attacker with network access and no authentication or user interaction can bypass authentication to reach critical functionality, which can expose confidentiality and integrity impacts and limited availability impact.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-31T13:00:02Z"},"cvss":{"score":8.6,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L","provenance":"source","from":"CVE.org CNA"},"epss":{"score":0.48134,"percentile":0.9886,"date":"2026-10-31","provenance":"source"},"kev":null,"vulncheckKev":{"dateAdded":"2024-01-22","exploitedFirstSeen":"2024-01-22","ransomware":false,"evidence":[{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-22&host_type=src&vulnerability=cve-2021-41266","date":"2024-01-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-24&host_type=src&vulnerability=cve-2021-41266","date":"2024-01-24"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-27&host_type=src&vulnerability=cve-2021-41266","date":"2024-01-27"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-28&host_type=src&vulnerability=cve-2021-41266","date":"2024-01-28"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-30&host_type=src&vulnerability=cve-2021-41266","date":"2024-01-30"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-31&host_type=src&vulnerability=cve-2021-41266","date":"2024-01-31"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-02-01&host_type=src&vulnerability=cve-2021-41266","date":"2024-02-01"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-02-07&host_type=src&vulnerability=cve-2021-41266","date":"2024-02-07"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-02-08&host_type=src&vulnerability=cve-2021-41266","date":"2024-02-08"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-02-09&host_type=src&vulnerability=cve-2021-41266","date":"2024-02-09"}],"evidenceTotal":586,"provenance":"source"},"exploited":true,"otx":null,"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"references":[{"url":"https://github.com/minio/console/security/advisories/GHSA-4999-659w-mq36","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/minio/console/pull/1217","tags":["x_refsource_MISC"]}],"techniques":[],"reports":[],"affected":[{"ecosystem":"Go","package":"github.com/minio/console","vulnerableRanges":["<0.12.3"],"patched":["0.12.3"],"from":["GHSA-4999-659w-mq36","GO-2022-0261"],"provenance":"source"}],"advisories":[{"id":"GHSA-4999-659w-mq36","url":"https://github.com/advisories/GHSA-4999-659w-mq36","severity":"HIGH","ecosystem":"Go","package":"github.com/minio/console","vulnerableRanges":["<0.12.3"],"patched":["0.12.3"],"provenance":"source","from":"GHSA"}],"euvd":{"id":"EUVD-2021-2293","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-2293","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":{"nuclei":[{"id":"CVE-2021-41266","name":"MinIO Operator Console Authentication Bypass","severity":"critical","path":"http/cves/2021/CVE-2021-41266.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-41266.yaml"}],"provenance":"source"},"exploitRefs":[],"flow":[],"timeline":[{"date":"2021-11-15","kind":"published","label":"Published (CVE.org)","url":"https://www.cve.org/CVERecord?id=CVE-2021-41266","provenance":"source"},{"date":"2024-01-22","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-01-22&host_type=src&vulnerability=cve-2021-41266","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":65.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1014 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.77,"detail":"percentile 0.9886"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 nuclei template"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":6.02,"detail":"base score 8.6"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}