CVE-2026-48129

{
  "id": "CVE-2026-48129",
  "sourceIdentifier": "[email protected]",
  "published": "2026-06-19T21:16:59.413",
  "lastModified": "2026-10-25T23:10:00.167",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kestra is an open-source, event-driven orchestration platform. Prior to versions 1.3.19, 1.2.19, 1.1.19, and 1.0.43, Kestra task `inputFiles` writes rendered file names directly under the task working directory. When a flow forwards untrusted execution or webhook data into an `inputFiles` file name, a caller can use `../` path segments to create or overwrite files outside that task working directory on the worker filesystem. Versions 1.3.19, 1.2.19, 1.1.19, and 1.0.43 patch the issue."
    },
    {
      "lang": "es",
      "value": "Kestra es una plataforma de orquestación de código abierto, impulsada por eventos. Antes de las versiones 1.3.19, 1.2.19, 1.1.19 y 1.0.43, la tarea ’inputFiles’ de Kestra escribe los nombres de archivo renderizados directamente en el directorio de trabajo de la tarea. Cuando un flujo reenvía datos de ejecución no confiables o de webhook a un nombre de archivo de ’inputFiles’, una entidad que llama puede usar segmentos de ruta ’.. / ’ para crear o sobrescribir archivos fuera de ese directorio de trabajo de la tarea en el sistema de archivos del trabajador. Las versiones 1.3.19, 1.2.19, 1.1.19 y 1.0.43 parchean el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "kestra-io",
          "product": "kestra",
          "versions": [
            {
              "version": "< 1.0.43",
              "status": "affected"
            },
            {
              "version": ">= 1.1.0, < 1.1.19",
              "status": "affected"
            },
            {
              "version": ">= 1.2.0, < 1.2.19",
              "status": "affected"
            },
            {
              "version": ">= 1.3.0, < 1.3.19",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 4.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-23T02:25:07.180951Z",
          "id": "CVE-2026-48129",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "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://github.com/kestra-io/kestra/security/advisories/GHSA-q3fw-mvgv-pjr2",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/kestra-io/kestra/security/advisories/GHSA-q3fw-mvgv-pjr2",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ]
}