CVE-2026-44945

{
  "id": "CVE-2026-44945",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-05T10:17:27.460",
  "lastModified": "2026-10-23T21:10:00.157",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "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."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de escalada de privilegios existe en el middleware de suplantación de identidad de Rancher (pkg/auth/requests/impersonate.go). Un usuario autenticado de Rancher con el rol global de usuario predeterminado puede obtener acceso administrativo completo al plano de control de Rancher y de forma transitiva a todos los clústeres descendentes que gestiona.\n\nEste problema afecta a Rancher: desde 2.11.0 antes de 2.11.16, desde 2.12.0 antes de 2.12.12, desde 2.13.0 antes de 2.13.8, y desde 2.14.0 antes de 2.14.2."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "SUSE",
          "product": "Rancher",
          "defaultStatus": "unaffected",
          "packageName": "Rancher",
          "repo": "https://github.com/rancher/rancher",
          "versions": [
            {
              "version": "2.11.0",
              "lessThan": "2.11.16",
              "versionType": "semver",
              "status": "affected",
              "changes": [
                {
                  "at": "2.11.16",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "2.12.0",
              "lessThan": "2.12.12",
              "versionType": "semver",
              "status": "affected",
              "changes": [
                {
                  "at": "2.12.12",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "2.13.0",
              "lessThan": "2.13.8",
              "versionType": "semver",
              "status": "affected",
              "changes": [
                {
                  "at": "2.13.8",
                  "status": "unaffected"
                }
              ]
            },
            {
              "version": "2.14.0",
              "lessThan": "2.14.2",
              "versionType": "semver",
              "status": "affected",
              "changes": [
                {
                  "at": "2.14.4",
                  "status": "unaffected"
                }
              ]
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
          "baseScore": 9.1,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-05T00:00:00+00:00",
          "id": "CVE-2026-44945",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-441"
        },
        {
          "lang": "en",
          "value": "CWE-497"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-44945",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rancher/rancher/pull/55983",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rancher/rancher/security/advisories/GHSA-v584-7w32-jwpq",
      "source": "[email protected]"
    }
  ]
}