CVE-2026-67260

{
  "id": "CVE-2026-67260",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-12T16:17:14.813",
  "lastModified": "2026-10-24T16:10:00.153",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Apache Airflow 3.3.0 moved human-in-the-loop tasks from the triggerer to a new `awaiting_input` task state swept by the scheduler. That sweep deserializes the task instance's `next_kwargs` without an allow-list, so a Dag author — who controls that value through the task execution API — can cause an arbitrary module import and object instantiation inside the scheduler process, or terminate the scheduler job. No non-default configuration is required: the sweep runs unconditionally every 15 seconds, and the default `allowed_deserialization_classes` setting does not cover this code path. Versions before 3.3.0 are not affected, because human-in-the-loop tasks deferred onto the triggerer instead. This is a different code path from CVE-2026-58076, which covers the same unguarded exception-node deserialization reached elsewhere — deployments that applied that fix must upgrade for this issue as well. Users are advised to upgrade to apache-airflow 3.3.1 or later."
    },
    {
      "lang": "es",
      "value": "Apache Airflow 3.3.0 movió las tareas con intervención humana del disparador a un nuevo estado de tarea “awaiting_input” barrido por el planificador. Ese barrido deserializa los “next_kwargs” de la instancia de tarea sin una lista de permitidos, por lo que un autor de Dag - quien controla ese valor a través de la API de ejecución de tareas - puede causar una importación de módulo arbitraria y una instanciación de objeto dentro del proceso del planificador, o terminar el trabajo del planificador. No se requiere ninguna configuración no predeterminada: el barrido se ejecuta incondicionalmente cada 15 segundos, y la configuración predeterminada de “allowed_deserialization_classes” no cubre esta ruta de código. Las versiones anteriores a la 3.3.0 no están afectadas, porque las tareas con intervención humana se aplazaban al disparador en su lugar. Esta es una ruta de código diferente de CVE-2026-58076, que cubre la misma deserialización de nodo de excepción sin protección alcanzada en otro lugar - las implementaciones que aplicaron esa corrección también deben actualizarse para este problema. Se aconseja a los usuarios actualizar a apache-airflow 3.3.1 o posterior."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Airflow",
          "defaultStatus": "unaffected",
          "collectionURL": "https://pypi.python.org",
          "packageName": "apache-airflow",
          "packageURL": "pkg:pypi/apache-airflow",
          "versions": [
            {
              "version": "3.3.0",
              "lessThan": "3.3.1",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "LOW"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-12T16:00:14.166719Z",
          "id": "CVE-2026-67260",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "3.3.0",
              "versionEndExcluding": "3.3.1",
              "matchCriteriaId": "F6D5F0B2-15A2-4782-8CC5-769E57D5F2F6"
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  ],
  "references": [
    {
      "url": "https://github.com/apache/airflow/pull/70685",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking",
        "Patch"
      ]
    },
    {
      "url": "https://lists.apache.org/thread/vygr0fh82cjzjp5k4vtfmboxryvm3lyn",
      "source": "[email protected]",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-58076",
      "source": "[email protected]",
      "tags": [
        "Not Applicable"
      ]
    }
  ]
}