CVE-2026-41861

{
  "id": "CVE-2026-41861",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-06T22:17:04.920",
  "lastModified": "2026-10-23T22:10:00.160",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Path Traversal in BOSH-Ecosystem / BOSH allows an IaaS-metadata attacker to make the agent write a root-owned file with partially attacker-controlled body to any path ending in .network, and create any missing parent directories with mode 0777 via network Alias on Ubuntu.\n\n\n\nAffected versions: BOSH agent < v2.847.0 (jammy <= v1.1202, or noble <= v1.364). Lower bound unspecified in advisory (\"All bosh agent versions\")."
    },
    {
      "lang": "es",
      "value": "Salto de ruta en el ecosistema BOSH / BOSH permite a un atacante de metadatos de IaaS hacer que el agente escriba un archivo propiedad de root con un cuerpo parcialmente controlado por el atacante en cualquier ruta que termine en .network, y crear cualquier directorio padre faltante con modo 0777 a través de un alias de red en Ubuntu.\n\nVersiones afectadas: Agente BOSH anterior a v2.847.0 (jammy menor o igual a v1.1202, o noble menor o igual a v1.364). Límite inferior no especificado en el aviso (’Todas las versiones del agente bosh’)."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "CloudFoundry Foundation",
          "product": "BOSH",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThan": "2.847.0",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L",
          "baseScore": 4.2,
          "baseSeverity": "MEDIUM",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-07T01:09:28.869433Z",
          "id": "CVE-2026-41861",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.cloudfoundry.org/blog/cve-2026-41861-arbitrary-root-file-write-via-path-traversal-in-bosh-agent/",
      "source": "[email protected]"
    }
  ]
}