{"id":"CVE-2026-55997","aliases":["EUVD-2026-53259","GHSA-7r53-jvhg-9jq4"],"status":"published","title":"Long-lived Rancher registration token exposed in plaintext","description":"Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00112,"percentile":0.01383,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-312"],"published":"2026-08-05T07:53:00Z","modified":"2026-10-28T02:30:46Z","products":[{"vendor":"rancher","product":"rancher"},{"vendor":"suse","product":"rancher"}],"references":[{"url":"https://github.com/rancher/rancher/security/advisories/GHSA-7r53-jvhg-9jq4","tags":["advisory"]},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-55997","tags":["report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55997.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55997","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-55997","title":"Long-lived Rancher registration token exposed in plaintext","description":"Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.","status":"published","published":"2026-08-05T07:53:00.194Z","modified":"2026-08-06T03:55:23.543Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:20:12.260247Z"}],"euvd":[{"id":"EUVD-2026-53259","description":"Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.","status":"published","published":"2026-08-05T07:53:00Z","modified":"2026-08-06T03:55:23Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:02:09.520152Z"}],"nvd":[{"id":"CVE-2026-55997","description":"Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.","status":"published","published":"2026-08-05T08:16:34.33Z","modified":"2026-09-01T20:54:51.287Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T14:12:35.031043Z"}],"osv":[{"id":"CVE-2026-55997","title":"Long-lived Rancher registration token exposed in plaintext","description":"Rancher issues long-lived registration tokens to authenticate nodes and agents joining a downstream cluster. These tokens were stored and exposed in plaintext with no expiration, so a malicious user could obtain one either through the Rancher API, etcd, stored automation, or direct file access on a node, and could use it at any time to register a rogue node into the cluster.","status":"published","published":"2026-08-05T07:53:00.194Z","modified":"2026-10-28T02:30:46.521052778Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-312"],"updated_at":"2026-11-02T15:45:11.609219Z"}]}}