Apache Airflow allows code execution through crafted XCom payloads

GHSA-6ffj-2wg2-w45j · BIT-airflow-2026-25917 · CVE-2026-25917 · PYSEC-2026-13

Published Apr 18, 2026 · Modified Jun 5, 2026

Description

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.

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-25917
WEB https://github.com/apache/airflow/pull/61641
PACKAGE https://github.com/apache/airflow
WEB https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2026-13.yaml
WEB https://lists.apache.org/thread/6whgpkqbh12rvpfmvcg8b0vwlv4hq3po
WEB http://www.openwall.com/lists/oss-security/2026/04/17/9

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