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FKIE_CVE-2026-45360

Vulnerability from fkie_nvd - Published: 2026-06-01 09:16 - Updated: 2026-07-21 19:10
Severity
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
Apache Airflow's scheduler-side deadline-reference decoder (`SerializedCustomReference.deserialize_reference`) imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG author whose code reaches the scheduler — the default on single-host deployments where the DAG bundle is importable from the scheduler process — could embed a custom `DeadlineReference` whose serialized form named an attacker-controlled module path, causing the scheduler to `import_string(...)` and instantiate that class with a live SQLAlchemy session attached. Affects deployments where DAG-author code is less trusted than the scheduler process. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.
References
security@apache.orghttps://github.com/apache/airflow/pull/66737Issue Tracking, Patch
security@apache.orghttps://lists.apache.org/thread/q227dghjwgfz8xsxrf2pwpz4wk43zm83Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/05/31/12Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
apache airflow *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://pypi.python.org",
          "defaultStatus": "unaffected",
          "packageName": "apache-airflow",
          "product": "Apache Airflow",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThan": "3.2.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "0893C3AA-26A4-4682-A36C-05E719EB2943",
              "versionEndExcluding": "3.2.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Apache Airflow\u0027s scheduler-side deadline-reference decoder (`SerializedCustomReference.deserialize_reference`) imported and dispatched arbitrary class paths drawn from DAG-author-controlled serialized state without an allowlist or plugin-registry gate. A DAG author whose code reaches the scheduler \u2014 the default on single-host deployments where the DAG bundle is importable from the scheduler process \u2014 could embed a custom `DeadlineReference` whose serialized form named an attacker-controlled module path, causing the scheduler to `import_string(...)` and instantiate that class with a live SQLAlchemy session attached. Affects deployments where DAG-author code is less trusted than the scheduler process. Users are advised to upgrade to `apache-airflow` 3.2.2 or later."
    },
    {
      "lang": "es",
      "value": "El decodificador de referencia de fecha l\u00edmite del lado del programador de Apache Airflow ( SerializedCustomReference.deserialize_reference ) importaba y despachaba rutas de clase arbitrarias extra\u00eddas de un estado serializado controlado por el autor del DAG sin una lista de permitidos o una puerta de registro de plugins. Un autor de DAG cuyo c\u00f3digo llega al programador - el valor predeterminado en implementaciones de un solo host donde el paquete DAG es importable desde el proceso del programador - podr\u00eda incrustar una \u0027DeadlineReference\u0027 personalizada cuya forma serializada nombraba una ruta de m\u00f3dulo controlada por el atacante, haciendo que el programador  import_string(...)  e instancie esa clase con una sesi\u00f3n de SQLAlchemy activa adjunta. Afecta a las implementaciones donde el c\u00f3digo del autor del DAG es menos confiable que el proceso del programador. Se aconseja a los usuarios actualizar a  apache-airflow  3.2.2 o posterior."
    }
  ],
  "id": "CVE-2026-45360",
  "lastModified": "2026-07-21T19:10:00.107",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-45360",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-02T15:48:16.710203Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-01T09:16:19.480",
  "references": [
    {
      "source": "security@apache.org",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "url": "https://github.com/apache/airflow/pull/66737"
    },
    {
      "source": "security@apache.org",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "url": "https://lists.apache.org/thread/q227dghjwgfz8xsxrf2pwpz4wk43zm83"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/05/31/12"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-502"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}



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