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Vulnerability Details CVE-2026-59242

Apache Airflow's XCom `GET /api/v2/{...}/xcomEntries/{key}?deserialize=true` endpoint passed a string-literal payload through `BaseXCom.deserialize_value` without the `_check_forbidden_xcom_keys` guard, allowing an authenticated API user with XCom write-and-read access to instantiate arbitrary `airflow.*` classes on the API server (CWE-502). An authenticated user who can write an XCom value and then read it back with `deserialize=true` triggers the unsafe instantiation. Users are advised to upgrade to apache-airflow 3.3.1 or later, which rejects reserved XCom serialization keys submitted as JSON string literals.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 45.6%
CVSS Severity
CVSS v3 Score 5.4
Products affected by CVE-2026-59242
  • Apache » Airflow » Version: N/A
    cpe:2.3:a:apache:airflow:-
  • Apache » Airflow » Version: 0.1
    cpe:2.3:a:apache:airflow:0.1
  • Apache » Airflow » Version: 0.2
    cpe:2.3:a:apache:airflow:0.2
  • Apache » Airflow » Version: 0.2.1
    cpe:2.3:a:apache:airflow:0.2.1
  • Apache » Airflow » Version: 0.2.2
    cpe:2.3:a:apache:airflow:0.2.2
  • Apache » Airflow » Version: 0.2.3
    cpe:2.3:a:apache:airflow:0.2.3
  • Apache » Airflow » Version: 0.3
    cpe:2.3:a:apache:airflow:0.3
  • Apache » Airflow » Version: 0.3.1
    cpe:2.3:a:apache:airflow:0.3.1
  • Apache » Airflow » Version: 0.3.2
    cpe:2.3:a:apache:airflow:0.3.2
  • Apache » Airflow » Version: 0.4
    cpe:2.3:a:apache:airflow:0.4
  • Apache » Airflow » Version: 0.4.1
    cpe:2.3:a:apache:airflow:0.4.1
  • Apache » Airflow » Version: 0.4.2
    cpe:2.3:a:apache:airflow:0.4.2
  • Apache » Airflow » Version: 0.4.3
    cpe:2.3:a:apache:airflow:0.4.3
  • Apache » Airflow » Version: 0.4.5
    cpe:2.3:a:apache:airflow:0.4.5
  • Apache » Airflow » Version: 0.4.6
    cpe:2.3:a:apache:airflow:0.4.6
  • Apache » Airflow » Version: 0.5.0
    cpe:2.3:a:apache:airflow:0.5.0
  • Apache » Airflow » Version: 1.0.0
    cpe:2.3:a:apache:airflow:1.0.0
  • Apache » Airflow » Version: 1.0.1
    cpe:2.3:a:apache:airflow:1.0.1
  • Apache » Airflow » Version: 1.1.0
    cpe:2.3:a:apache:airflow:1.1.0
  • Apache » Airflow » Version: 1.1.1
    cpe:2.3:a:apache:airflow:1.1.1
  • Apache » Airflow » Version: 1.10.0
    cpe:2.3:a:apache:airflow:1.10.0
  • Apache » Airflow » Version: 1.10.1
    cpe:2.3:a:apache:airflow:1.10.1
  • Apache » Airflow » Version: 1.10.10
    cpe:2.3:a:apache:airflow:1.10.10
  • Apache » Airflow » Version: 1.10.11
    cpe:2.3:a:apache:airflow:1.10.11
  • Apache » Airflow » Version: 1.10.12
    cpe:2.3:a:apache:airflow:1.10.12
  • Apache » Airflow » Version: 1.10.13
    cpe:2.3:a:apache:airflow:1.10.13
  • Apache » Airflow » Version: 1.10.14
    cpe:2.3:a:apache:airflow:1.10.14
  • Apache » Airflow » Version: 1.10.15
    cpe:2.3:a:apache:airflow:1.10.15
  • Apache » Airflow » Version: 1.10.2
    cpe:2.3:a:apache:airflow:1.10.2
  • Apache » Airflow » Version: 1.10.5
    cpe:2.3:a:apache:airflow:1.10.5
  • Apache » Airflow » Version: 1.10.6
    cpe:2.3:a:apache:airflow:1.10.6
  • Apache » Airflow » Version: 1.10.7
    cpe:2.3:a:apache:airflow:1.10.7
  • Apache » Airflow » Version: 1.10.8
    cpe:2.3:a:apache:airflow:1.10.8
  • Apache » Airflow » Version: 1.10.9
    cpe:2.3:a:apache:airflow:1.10.9
  • Apache » Airflow » Version: 1.2.0
    cpe:2.3:a:apache:airflow:1.2.0
  • Apache » Airflow » Version: 1.3.0
    cpe:2.3:a:apache:airflow:1.3.0
  • Apache » Airflow » Version: 1.4.0
    cpe:2.3:a:apache:airflow:1.4.0
  • Apache » Airflow » Version: 1.4.1
    cpe:2.3:a:apache:airflow:1.4.1
  • Apache » Airflow » Version: 1.5.0
    cpe:2.3:a:apache:airflow:1.5.0
  • Apache » Airflow » Version: 1.5.1
    cpe:2.3:a:apache:airflow:1.5.1
  • Apache » Airflow » Version: 1.5.2
    cpe:2.3:a:apache:airflow:1.5.2
  • Apache » Airflow » Version: 1.6.0
    cpe:2.3:a:apache:airflow:1.6.0
  • Apache » Airflow » Version: 1.6.1
    cpe:2.3:a:apache:airflow:1.6.1
  • Apache » Airflow » Version: 1.6.2
    cpe:2.3:a:apache:airflow:1.6.2
  • Apache » Airflow » Version: 1.7.0
    cpe:2.3:a:apache:airflow:1.7.0
  • Apache » Airflow » Version: 1.7.1
    cpe:2.3:a:apache:airflow:1.7.1
  • Apache » Airflow » Version: 1.7.1.1
    cpe:2.3:a:apache:airflow:1.7.1.1
  • Apache » Airflow » Version: 1.7.1.2
    cpe:2.3:a:apache:airflow:1.7.1.2
  • Apache » Airflow » Version: 1.7.1.3
    cpe:2.3:a:apache:airflow:1.7.1.3
  • Apache » Airflow » Version: 1.8.0
    cpe:2.3:a:apache:airflow:1.8.0
  • Apache » Airflow » Version: 1.8.1
    cpe:2.3:a:apache:airflow:1.8.1
  • Apache » Airflow » Version: 1.8.2
    cpe:2.3:a:apache:airflow:1.8.2
  • Apache » Airflow » Version: 1.9.0
    cpe:2.3:a:apache:airflow:1.9.0
  • Apache » Airflow » Version: 2.0.0
    cpe:2.3:a:apache:airflow:2.0.0
  • Apache » Airflow » Version: 2.0.1
    cpe:2.3:a:apache:airflow:2.0.1
  • Apache » Airflow » Version: 2.0.2
    cpe:2.3:a:apache:airflow:2.0.2
  • Apache » Airflow » Version: 2.1.0
    cpe:2.3:a:apache:airflow:2.1.0
  • Apache » Airflow » Version: 2.1.1
    cpe:2.3:a:apache:airflow:2.1.1
  • Apache » Airflow » Version: 2.1.2
    cpe:2.3:a:apache:airflow:2.1.2
  • Apache » Airflow » Version: 2.1.3
    cpe:2.3:a:apache:airflow:2.1.3
  • Apache » Airflow » Version: 2.1.4
    cpe:2.3:a:apache:airflow:2.1.4
  • Apache » Airflow » Version: 2.10.0
    cpe:2.3:a:apache:airflow:2.10.0
  • Apache » Airflow » Version: 2.10.1
    cpe:2.3:a:apache:airflow:2.10.1
  • Apache » Airflow » Version: 2.10.2
    cpe:2.3:a:apache:airflow:2.10.2
  • Apache » Airflow » Version: 2.10.3
    cpe:2.3:a:apache:airflow:2.10.3
  • Apache » Airflow » Version: 2.10.4
    cpe:2.3:a:apache:airflow:2.10.4
  • Apache » Airflow » Version: 2.10.5
    cpe:2.3:a:apache:airflow:2.10.5
  • Apache » Airflow » Version: 2.11.0
    cpe:2.3:a:apache:airflow:2.11.0
  • Apache » Airflow » Version: 2.11.1
    cpe:2.3:a:apache:airflow:2.11.1
  • Apache » Airflow » Version: 2.2.0
    cpe:2.3:a:apache:airflow:2.2.0
  • Apache » Airflow » Version: 2.2.1
    cpe:2.3:a:apache:airflow:2.2.1
  • Apache » Airflow » Version: 2.2.2
    cpe:2.3:a:apache:airflow:2.2.2
  • Apache » Airflow » Version: 2.2.3
    cpe:2.3:a:apache:airflow:2.2.3
  • Apache » Airflow » Version: 2.2.4
    cpe:2.3:a:apache:airflow:2.2.4
  • Apache » Airflow » Version: 2.2.5
    cpe:2.3:a:apache:airflow:2.2.5
  • Apache » Airflow » Version: 2.3.0
    cpe:2.3:a:apache:airflow:2.3.0
  • Apache » Airflow » Version: 2.3.1
    cpe:2.3:a:apache:airflow:2.3.1
  • Apache » Airflow » Version: 2.3.3
    cpe:2.3:a:apache:airflow:2.3.3
  • Apache » Airflow » Version: 2.3.4
    cpe:2.3:a:apache:airflow:2.3.4
  • Apache » Airflow » Version: 2.4.0
    cpe:2.3:a:apache:airflow:2.4.0
  • Apache » Airflow » Version: 2.4.1
    cpe:2.3:a:apache:airflow:2.4.1
  • Apache » Airflow » Version: 2.4.3
    cpe:2.3:a:apache:airflow:2.4.3
  • Apache » Airflow » Version: 2.5.0
    cpe:2.3:a:apache:airflow:2.5.0
  • Apache » Airflow » Version: 2.6.0
    cpe:2.3:a:apache:airflow:2.6.0
  • Apache » Airflow » Version: 2.6.1
    cpe:2.3:a:apache:airflow:2.6.1
  • Apache » Airflow » Version: 2.6.2
    cpe:2.3:a:apache:airflow:2.6.2
  • Apache » Airflow » Version: 2.6.3
    cpe:2.3:a:apache:airflow:2.6.3
  • Apache » Airflow » Version: 2.7.0
    cpe:2.3:a:apache:airflow:2.7.0
  • Apache » Airflow » Version: 2.7.1
    cpe:2.3:a:apache:airflow:2.7.1
  • Apache » Airflow » Version: 2.7.2
    cpe:2.3:a:apache:airflow:2.7.2
  • Apache » Airflow » Version: 2.7.3
    cpe:2.3:a:apache:airflow:2.7.3
  • Apache » Airflow » Version: 2.8.0
    cpe:2.3:a:apache:airflow:2.8.0
  • Apache » Airflow » Version: 2.8.1
    cpe:2.3:a:apache:airflow:2.8.1
  • Apache » Airflow » Version: 2.8.2
    cpe:2.3:a:apache:airflow:2.8.2
  • Apache » Airflow » Version: 2.8.3
    cpe:2.3:a:apache:airflow:2.8.3
  • Apache » Airflow » Version: 2.8.4
    cpe:2.3:a:apache:airflow:2.8.4
  • Apache » Airflow » Version: 2.9.0
    cpe:2.3:a:apache:airflow:2.9.0
  • Apache » Airflow » Version: 2.9.1
    cpe:2.3:a:apache:airflow:2.9.1
  • Apache » Airflow » Version: 2.9.2
    cpe:2.3:a:apache:airflow:2.9.2
  • Apache » Airflow » Version: 2.9.3
    cpe:2.3:a:apache:airflow:2.9.3
  • Apache » Airflow » Version: 3.0.0
    cpe:2.3:a:apache:airflow:3.0.0
  • Apache » Airflow » Version: 3.0.1
    cpe:2.3:a:apache:airflow:3.0.1
  • Apache » Airflow » Version: 3.0.2
    cpe:2.3:a:apache:airflow:3.0.2
  • Apache » Airflow » Version: 3.0.3
    cpe:2.3:a:apache:airflow:3.0.3
  • Apache » Airflow » Version: 3.0.4
    cpe:2.3:a:apache:airflow:3.0.4
  • Apache » Airflow » Version: 3.0.5
    cpe:2.3:a:apache:airflow:3.0.5
  • Apache » Airflow » Version: 3.0.6
    cpe:2.3:a:apache:airflow:3.0.6
  • Apache » Airflow » Version: 3.1.0
    cpe:2.3:a:apache:airflow:3.1.0
  • Apache » Airflow » Version: 3.1.1
    cpe:2.3:a:apache:airflow:3.1.1
  • Apache » Airflow » Version: 3.1.2
    cpe:2.3:a:apache:airflow:3.1.2
  • Apache » Airflow » Version: 3.1.3
    cpe:2.3:a:apache:airflow:3.1.3
  • Apache » Airflow » Version: 3.1.4
    cpe:2.3:a:apache:airflow:3.1.4
  • Apache » Airflow » Version: 3.1.5
    cpe:2.3:a:apache:airflow:3.1.5
  • Apache » Airflow » Version: 3.1.6
    cpe:2.3:a:apache:airflow:3.1.6
  • Apache » Airflow » Version: 3.1.7
    cpe:2.3:a:apache:airflow:3.1.7
  • Apache » Airflow » Version: 3.1.8
    cpe:2.3:a:apache:airflow:3.1.8
  • Apache » Airflow » Version: 3.2.0
    cpe:2.3:a:apache:airflow:3.2.0
  • Apache » Airflow » Version: 3.2.1
    cpe:2.3:a:apache:airflow:3.2.1
  • Apache » Airflow » Version: 3.2.2
    cpe:2.3:a:apache:airflow:3.2.2
  • Apache » Airflow » Version: 3.3.0
    cpe:2.3:a:apache:airflow:3.3.0


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