Low [CVE-2026-101031] The `example_dag_decorator` example Dag shipped with Apache Airflow validated an IP address fetched over HTTP with Python's `ipaddress` module and then placed it into a shell command
This low-severity Apache Software Foundation advisory covers CVE-2026-101031; related products: Apache Airflow.
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Summary
The `example_dag_decorator` example Dag shipped with Apache Airflow validated an IP address fetched over HTTP with Python's `ipaddress` module and then placed it into a shell command.
`ipaddress` accepts IPv6 zone identifiers containing arbitrary characters, so when example Dags are loaded (`load_examples` enabled), a user who can trigger that Dag with a custom `url` parameter could point it at a server whose response injects shell commands run on the worker.
This is an incomplete fix for CVE-2025-54941; users who upgraded for CVE-2025-54941 should upgrade again. Users are advised to upgrade to apache-airflow 3.4.0 or later, or to disable example Dags (`load_examples = False`), which is recommended for production.
Is CVE-2026-101031 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-101031 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-101031?
Upgrade to a fixed release named by Apache:
- 3.4.0
Confirm against the vendor advisory before you patch.
- Apache Airflow 3.0.5 before 3.4.0
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
- This is an incomplete fix for CVE-2025-54941; users who upgraded for CVE-2025-54941 should upgrade again.
- Users are advised to upgrade to apache-airflow 3.4.0 or later, or to disable example Dags (`load_examples = False`), which is recommended for production.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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