{"id":"CVE-2026-44945","aliases":["EUVD-2026-53298","GHSA-v584-7w32-jwpq"],"status":"published","title":"Cross-Cluster Impersonation Confused-Deputy Privilege Escalation","description":"A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user\n global role can gain full administrative access to the Rancher control \nplane and transitively to all downstream clusters it manages.\n\nThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.","severity":{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0056,"percentile":0.469,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-441","CWE-497"],"published":"2026-08-05T10:00:04Z","modified":"2026-10-28T02:30:49Z","products":[{"vendor":"suse","product":"rancher"}],"references":[{"url":"https://github.com/rancher/rancher/pull/55983","tags":["patch","fix"]},{"url":"https://github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq","tags":["vendor-advisory","advisory"]},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44945","tags":["issue-tracking","report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44945.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44945","tags":["advisory"]},{"url":"https://github.com/rancher/rancher","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-44945","title":"Cross-Cluster Impersonation Confused-Deputy Privilege Escalation","description":"A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user\n global role can gain full administrative access to the Rancher control \nplane and transitively to all downstream clusters it manages.\n\nThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.","status":"published","published":"2026-08-05T10:00:04.286Z","modified":"2026-08-06T03:55:24.71Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-441","CWE-497"],"updated_at":"2026-11-02T13:43:00.288193Z"}],"euvd":[{"id":"EUVD-2026-53298","description":"A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user\n global role can gain full administrative access to the Rancher control \nplane and transitively to all downstream clusters it manages.\n\nThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.","status":"published","published":"2026-08-05T10:00:04Z","modified":"2026-08-06T03:55:24Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T18:02:09.520152Z"}],"nvd":[{"id":"CVE-2026-44945","description":"A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user\n global role can gain full administrative access to the Rancher control \nplane and transitively to all downstream clusters it manages.\n\nThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.","status":"published","published":"2026-08-05T10:17:27.46Z","modified":"2026-10-23T21:10:00.157Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-441","CWE-497"],"updated_at":"2026-11-02T14:12:35.031043Z"}],"osv":[{"id":"CVE-2026-44945","title":"Cross-Cluster Impersonation Confused-Deputy Privilege Escalation","description":"A privilege escalation vulnerability exists in Rancher's impersonation middleware (pkg/auth/requests/impersonate.go). An authenticated Rancher user with the default user\n global role can gain full administrative access to the Rancher control \nplane and transitively to all downstream clusters it manages.\n\nThis issue affects Rancher: from 2.11.0 before 2.11.16, from 2.12.0 before 2.12.12, from 2.13.0 before 2.13.8, and from 2.14.0 before 2.14.2.","status":"published","published":"2026-08-05T10:00:04.286Z","modified":"2026-10-28T02:30:49.437622614Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-441","CWE-497"],"updated_at":"2026-11-02T15:45:05.172514Z"}]}}