CVE-2026-11429

Estado: Pendiente de análisisCrítica (10)—

Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file uploads where a user-supplied filename component is used to construct the destination path without validation, allowing arbitrary files to be written to any location writable by the service account. Because the file write operation completes before authentication is validated, the vulnerability can be exploited without any credentials, session, or prior knowledge of the system.

An unauthenticated network attacker can use this primitive to place executable content in directories where it is later executed by the service, resulting in remote code execution under the Vault Service account.

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Altium Enterprise Server is fixed in 8.1.1; the issue has been remediated in Altium 365 (commercial and government cloud) at the service level.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 10

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.15%
Percentil entre todas las CVEs puntuadas: 66
Fecha de la puntuación: 6/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access95 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %
Impacto secundarioT1574.001 DLLstealth · execution75 %

Vulnerabilidad de carga de archivos en endpoint web sin autenticación (AV:N, PR:N, UI:N) que permite escritura arbitraria de ficheros ejecutables en directorios del servicio, resultando en RCE remota.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account Management Execution Prevention Audit Update Software Application Developer Guidance Vulnerability Scanning

Tecnologías afectadas (2)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Altium — 365^AI Altium — Enterprise Server^AI

CWE

CWE-22, CWE-306

Referencias

https://www.altium.com/platform/security-compliance/security-advisories

JSON original (NVD)

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{
  "id": "CVE-2026-11429",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-11429",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-06-08T13:11:55.450617Z"
        }
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 10,
          "Automatable": "NOT_DEFINED",
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "vulnAvailabilityImpact": "HIGH",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79",
      "affectedData": [
        {
          "vendor": "Altium",
          "modules": [
            "Vault Service (ScriptsController)"
          ],
          "product": "Altium Enterprise Server",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "8.1.1",
              "versionType": "semver"
            }
          ],
          "platforms": [
            "Web"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "vendor": "Altium",
          "modules": [
            "Vault Service (ScriptsController)"
          ],
          "product": "Altium 365",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified"
            }
          ],
          "platforms": [
            "Web"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-06-05T22:16:47.503",
  "references": [
    {
      "url": "https://www.altium.com/platform/security-compliance/security-advisories",
      "source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file uploads where a user-supplied filename component is used to construct the destination path without validation, allowing arbitrary files to be written to any location writable by the service account. Because the file write operation completes before authentication is validated, the vulnerability can be exploited without any credentials, session, or prior knowledge of the system.\n\n\n\n\nAn unauthenticated network attacker can use this primitive to place executable content in directories where it is later executed by the service, resulting in remote code execution under the Vault Service account. Altium Enterprise Server is fixed in 8.1.1; the issue has been remediated in Altium 365 (commercial and government cloud) at the service level."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de salto de ruta existe en el componente de Servicio Git compartido por Altium Enterprise Server y Altium 365. El servicio acepta una secuencia de operaciones de manipulación de archivos post-clonación que utilizan rutas proporcionadas por el usuario sin validación, permitiendo a un usuario autenticado con acceso git básico mover archivos arbitrarios fuera del área de repositorio prevista.\n\nEsta primitiva de movimiento de archivos puede usarse para colocar contenido de script controlado por el atacante en directorios donde es ejecutado posteriormente por el servicio, resultando en ejecución remota de código bajo la cuenta del Servicio Git. En implementaciones multi-inquilino de Altium 365, esto podría haber permitido el acceso a datos pertenecientes a otros inquilinos en el mismo nodo de infraestructura. Altium Enterprise Server está corregido en 8.1.1; el problema ha sido remediado en Altium 365 a nivel de servicio."
    }
  ],
  "lastModified": "2026-07-23T07:10:00.113",
  "sourceIdentifier": "4760f414-e1ae-4ff1-bdad-c7a9c3538b79"
}