CVE-2026-25705

{
  "id": "CVE-2026-25705",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-13T08:16:16.083",
  "lastModified": "2026-10-26T14:10:00.130",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been identified in [Rancher's Extensions](https://ranchermanager.docs.rancher.com/integrations-in-rancher/rancher-extensions) where malicious code can be injected in Rancher through a path traversal in the `compressedEndpoint` field inside a `UIPlugin` deployment. A malicious UI extension could abuse that to:  *  Overwrite Rancher binaries or configuration to inject code.\n\n  *  Write to /var/lib/rancher/ to tamper with cluster state.\n\n  *  If hostPath volumes are mounted, write to the host node filesystem.\n\n  *  Use this issue to chain with other attack vectors."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad ha sido identificada en las [extensiones de Rancher](https://ranchermanager.docs.rancher.com/integrations-in-rancher/rancher-extensions) donde se puede inyectar código malicioso en Rancher a través de un salto de ruta en el campo “compressedEndpoint” dentro de un despliegue de “UIPlugin”. Una extensión de UI maliciosa podría abusar de ello para:\n  *  Sobrescribir binarios o la configuración de Rancher para inyectar código.\n  *  Escribir en /var/lib/rancher/ para manipular el estado del clúster.\n  *  Si los volúmenes hostPath están montados, escribir en el sistema de archivos del nodo host.\n  *  Usar este problema para encadenar con otros vectores de ataque."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "SUSE",
          "product": "rancher",
          "defaultStatus": "unaffected",
          "packageName": "github.com/rancher/rancher",
          "versions": [
            {
              "version": "2.14.0",
              "lessThan": "2.14.1",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.13.0",
              "lessThan": "2.13.5",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.12.0",
              "lessThan": "2.12.9",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "2.10.11",
              "lessThan": "2.11.13",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H",
          "baseScore": 8.4,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.7,
        "impactScore": 6.0
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-13T00:00:00+00:00",
          "id": "CVE-2026-25705",
          "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-35"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-25705",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rancher/rancher/security/advisories/GHSA-5v3h-x4wf-5c35",
      "source": "[email protected]"
    }
  ]
}