Apache Airflow: Shell command injection in the example_dag_decorator example Dag via an IPv6 zone identifier

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-101031
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-09 10:17:02 UTC
Updated2026-11-10 21:12:53 UTC
DescriptionThe `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.

Risk And Classification

EPSS: 0.002140000 probability, percentile 0.118210000 (date 2026-11-10)

Problem Types: CWE-78 | CWE-78 CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Airflow affected 3.0.5 3.4.0 semver Not specified

References

ReferenceSourceLinkTags
www.cve.org/CVERecord [email protected] www.cve.org
lists.apache.org/thread.html/p53zxybld58wv722c7zxk0w8d2rnkfwk [email protected] lists.apache.org
github.com/apache/airflow/pull/73787 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Andrew Rukin (Arenadata) (en)

CNA: Jarek Potiuk (en)

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