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CVE-2026-59242 Apache Airflow: Arbitrary airflow.* class instantiation on the API server via the XCom deserialize endpoint

🗓️ 12 Aug 2026 15:35:00Reported by apacheType 
cvelist
 cvelist
🔗 www.cve.org👁 21 Views

Apache Airflow 3.3.0 and earlier allows authenticated users to instantiate arbitrary airflow.* classes via the XCom deserialize API endpoint.

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Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-59242
12 Aug 202615:35
attackerkb
cve
CVE
CVE-2026-59242
12 Aug 202615:35
cve
euvd
EUVD
EUVD-2026-57312
12 Aug 202615:35
euvd
nvd
NVD
CVE-2026-59242
12 Aug 202616:17
nvd
vulnrichment
Vulnrichment
CVE-2026-59242 Apache Airflow: Arbitrary airflow.* class instantiation on the API server via the XCom deserialize endpoint
12 Aug 202615:35
vulnrichment
[
  {
    "collectionURL": "https://pypi.python.org",
    "defaultStatus": "unaffected",
    "packageName": "apache-airflow",
    "product": "Apache Airflow",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThan": "3.3.1",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

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