CVE-2026-25917

CVE-2026-25917: Apache Airflow: API extra-links triggers XCom deserialization/class instantiation (Airflow 3.1.5)

Vendor Apache Software Foundation
Product Apache Airflow
Weakness CWE-502 · Unsafe deserialization
Published April 18, 2026
Last update April 22, 2026

CVSS base score

What the vulnerability does

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.

Key dates

Disclosure timeline

April 18, 2026 CVE published
April 22, 2026 Record updated