CVE-2020-17511: Plain Text Storage of Passwords in Apache Airflow

apache-airflow Updated 02 Oct 2025

Summary

17/12/2020
Yes i
Low
2.8

CVE-2020-17511: Apache Airflow logs passwords in plaintext. Affects apache-airflow versions < 1.10.13. Fixed in 1.10.13. How to fix ↓

Also tracked for

The same CVE-2020-17511 is tracked separately for each ecosystem and vendor. Its fix information is the same; the package and affected versions differ.

Free scan

Check if this vulnerability affects your application

Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.

Check my app free

No signup required · Results in about 60 seconds

Sponsored Devnack Your last release was probably never penetration tested Manual testing by engineers who build software, not an auditor's checklist. Trusted by teams at Swift and Google Talk to Devnack

Background

Apache Airflow is an open-source platform used for programmatically authoring, scheduling, and monitoring workflows. It provides a rich set of features and tools for managing complex data pipelines. However, prior to version 1.10.13, Apache Airflow had a vulnerability that allowed passwords to be stored in plain text in the Log table in Airflow Metadata. This vulnerability also affected the creation of Connections with password fields.

Vulnerability Detail

The vulnerability in Apache Airflow allowed passwords to be logged in plain text, which poses a significant security risk. If an attacker gains access to the Airflow Metadata or Log table, they can easily retrieve sensitive information such as user passwords or connection credentials. This can lead to unauthorized access, data breaches, and other malicious activities. The vulnerability was assigned the Common Vulnerabilities and Exposures (CVE) identifier CVE-2020-17511 and has a severity rating of MODERATE according to the Common Weakness Enumeration (CWE) classification (CWE-312).

How To Fix

Latest published version: 3.3.2 as of 22 Oct 2026

pip install --upgrade "apache-airflow==3.3.2"

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.10.13

This is the first release that contains the fix.

pip install --upgrade "apache-airflow==1.10.13"

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Workaround

There is no specific workaround mentioned for this vulnerability. The recommended approach is to upgrade to the fixed version of Apache Airflow.

Conclusion

In conclusion, the vulnerability in Apache Airflow allowed passwords to be stored in plain text, posing a significant security risk. Upgrading to Apache Airflow version 1.10.13 or later is recommended to fix this vulnerability and ensure the secure storage of passwords. For further support on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for apache-airflow →

Share this vulnerability

FAQ

Apache Airflow is an open-source platform used for programmatically authoring, scheduling, and monitoring workflows. It provides a rich set of features and tools for managing complex data pipelines.

The vulnerability allows passwords to be stored in plain text, which can be accessed by unauthorized individuals. This can lead to unauthorized access, data breaches, and other malicious activities.

To fix this vulnerability, it is recommended to upgrade to Apache Airflow version 1.10.13 or later.

There is no specific workaround mentioned for this vulnerability. The recommended approach is to upgrade to the fixed version of Apache Airflow.

The vulnerability has a severity rating of MODERATE according to the Common Weakness Enumeration (CWE) classification (CWE-312).

Related vulnerabilities

Recent vulnerabilities recorded for apache-airflow.

How To Fix

Latest published version: 3.3.2 as of 22 Oct 2026

pip install --upgrade "apache-airflow==3.3.2"

Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.

If you need the minimum change

1.10.13

This is the first release that contains the fix.

pip install --upgrade "apache-airflow==1.10.13"

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

Subscribe to Vulert on Telegram
Daily digest of new CVEs, critical and high severity, affected packages and fixes — plus a weekly roundup.
Join the channel →
Help improve this record
Report an issue or send feedback