Apache Airflow's Task Execution API stored XCom values written by a task without the reserved-key check applied elsewhere, so a Dag author's task…
Apache Airflow's Task Execution API stored XCom values written by a task without the reserved-key check applied elsewhere, so a Dag author's task could write an XCom that, when a user later viewed it through the API with deserialization enabled, made the API server instantiate classes from the `airflow.*` namespace with arguments the Dag author chose. This is an incomplete fix for CVE-2026-59242: users who applied that fix in apache-airflow 3.3.1 remain affected through this route and should upgrade to apache-airflow 3.4.0 or later.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Apache Software Foundation
- Product
- Apache Airflow
- Weakness
- CWE-502
- Exposure class
- Developer platform
- NVD status
- Received
Why it ranks 20 (Routine)
- Product class: developer platform
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.