Deserialization of Untrusted Data in Apache Airflow - CVE-2025-54550
Published: August 25, 2026
Vulnerability identifier: #VU145322
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-54550
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the worker.
The vulnerability exists due to unsafe deserialization in the example_xcom DAG example when reading a value from XCom. A remote user can modify XCom values to execute arbitrary code on the worker.
Exploitation requires access to modify XComs through the UI.
Affected software
Apache Airflow
How to mitigate CVE-2025-54550
Install security update from vendor's website.
Apache Airflow - update to 3.2.0