{"id":"CVE-2026-44945","state":"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.","publishedAt":"2026-08-05T10:00:04.286Z","updatedAt":"2026-08-06T03:55:24.710Z","severity":{"score":9.1,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","source":"suse"},"assigner":"suse","products":["SUSE Rancher"],"affected":[{"vendor":"SUSE","product":"Rancher","packageName":"Rancher","defaultStatus":"unaffected","versions":[{"version":"2.11.0","status":"affected","lessThan":"2.11.16","changes":[{"at":"2.11.16","status":"unaffected"}],"versionType":"semver"},{"version":"2.12.0","status":"affected","lessThan":"2.12.12","changes":[{"at":"2.12.12","status":"unaffected"}],"versionType":"semver"},{"version":"2.13.0","status":"affected","lessThan":"2.13.8","changes":[{"at":"2.13.8","status":"unaffected"}],"versionType":"semver"},{"version":"2.14.0","status":"affected","lessThan":"2.14.2","changes":[{"at":"2.14.4","status":"unaffected"}],"versionType":"semver"}],"repo":"https://github.com/rancher/rancher"}],"references":["https://github.com/rancher/rancher/pull/55983","https://github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq","https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44945"],"weaknesses":["CWE-441","CWE-497"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/44xxx/CVE-2026-44945.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-44945","state":"PUBLISHED","datePublished":"2026-08-05T10:00:04.286Z","dateUpdated":"2026-08-06T03:55:24.710Z","assignerShortName":"suse","assignerOrgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateReserved":"2026-05-08T12:29:48.968Z"},"containers":{"cna":{"title":"Cross-Cluster Impersonation Confused-Deputy Privilege Escalation","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"SUSE","product":"Rancher","packageName":"Rancher","defaultStatus":"unaffected","versions":[{"version":"2.11.0","status":"affected","lessThan":"2.11.16","changes":[{"at":"2.11.16","status":"unaffected"}],"versionType":"semver"},{"version":"2.12.0","status":"affected","lessThan":"2.12.12","changes":[{"at":"2.12.12","status":"unaffected"}],"versionType":"semver"},{"version":"2.13.0","status":"affected","lessThan":"2.13.8","changes":[{"at":"2.13.8","status":"unaffected"}],"versionType":"semver"},{"version":"2.14.0","status":"affected","lessThan":"2.14.2","changes":[{"at":"2.14.4","status":"unaffected"}],"versionType":"semver"}],"repo":"https://github.com/rancher/rancher"}],"references":[{"url":"https://github.com/rancher/rancher/pull/55983","tags":["patch"]},{"url":"https://github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq","tags":["vendor-advisory"]},{"url":"https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44945","tags":["issue-tracking"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV3_1":{"version":"3.1","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseSeverity":"CRITICAL","baseScore":9.1,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-441","lang":"en","description":"CWE-441: Unintended Proxy or Intermediary ('Confused Deputy')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-497","lang":"en","description":"CWE-497 Exposure of sensitive system information to an unauthorized control sphere","type":"CWE"}]}],"providerMetadata":{"shortName":"suse","orgId":"404e59f5-483d-4b8a-8e7a-e67604dd8afb","dateUpdated":"2026-08-05T10:00:04.286Z"},"credits":[{"lang":"en","value":"This vulnerability was discovered and reported by @BenTheCyberOne.","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T00:00:00+00:00","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3","id":"CVE-2026-44945"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-06T03:55:24.710Z"}}]}}}