BIT-airflow-2026-59242

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/airflow/BIT-airflow-2026-59242.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-airflow-2026-59242
Aliases
Published
2026-08-17T05:39:24Z
Modified
2026-09-08T08:45:29Z
Summary
Apache Airflow: Arbitrary airflow.* class instantiation on the API server via the XCom deserialize endpoint
Details

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.

Database specific 
{
    "cpes": [
        "cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}
References

Affected packages

Bitnami / airflow

Package

Name
airflow
Purl
pkg:bitnami/airflow

Severity

  • 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.3.1

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/airflow/BIT-airflow-2026-59242.json"