Apache Airflow allows code execution through crafted XCom payloads
Dag Authors, who normally should not be able to execute code in the webserver context could craft XCom payload causing the webserver to execute arbitrary code. Since Dag Authors are already highly trusted, severity of this issue is Low. Users are recommended to upgrade to Apache Airflow 3.2.0, which fixes the issue.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | apache-airflow | < 3.2.0 | 3.2.0 |
| Python (PyPI) | apache-airflow-core | < 3.2.0 | 3.2.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-25917
- https://github.com/apache/airflow/pull/61641
- https://github.com/apache/airflow
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-13.yaml
- https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po
- http://www.openwall.com/lists/oss-security/2026/04/17/9
- https://pypi.org/project/apache-airflow-core
- https://github.com/advisories/GHSA-6ffj-2wg2-w45j
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-502- Platform
- Python (PyPI)
- Package
apache-airflow, apache-airflow-core- Disclosed
- 18.04.2026
- Updated
- 11.10.2026 14:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-13 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-6ffj-2wg2-w45j - CC BY 4.0
OSV / GitHub Advisory Database - PYSEC-2026-2359 - PyPA Advisory Database; CC BY 4.0
Vulnerability history: apache-airflow-core
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 04.2026 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 3
- Medium 1
- Low 1
Disclosures per year
- 2026: 5
-
Apache Airflow allows code execution through crafted XCom payloads this entry
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