CVE-2026-65017: Apache Airflow Config API sensitive value masking bypass in multi-team mode

CVE-2026-65017 · Severity: medium · CVSS 6.5 · Published 2026-08-12

Apache Airflow is a workflow orchestration platform used by organizations to schedule and monitor data pipelines. In multi-team deployments where the Config API is exposed, a user with only read-only configuration access could bypass security controls and extract sensitive broker credentials (like database passwords or authentication tokens) that should have been hidden, potentially exposing critical infrastructure secrets.

Technologies: Apache Airflow, apache-airflow (PyPI). Vendors: Apache, PyPI.

Quick answers

Is CVE-2026-65017 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-65017 being exploited in the wild.
How severe is CVE-2026-65017?
Medium severity, with a CVSS score of 6.5, published 12 August 2026.
Which products and versions are affected?
Apache Airflow before 3.3.1; apache-airflow (PyPI) >= 3.3.0, < 3.3.1, ECOSYSTEM:introduced=3.3.0,fixed=3.3.1.
Is there a fix for CVE-2026-65017?
Yes. apache-airflow (PyPI): upgrade to 3.3.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-65017 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-65017?
Check whether you run Apache Airflow or apache-airflow (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • apache-airflow (PyPI): upgrade to 3.3.1 or later
    pip install "apache-airflow>=3.3.1"

Technical details

The vulnerability is an information disclosure (CWE-200) caused by improper masking of sensitive configuration values in the Config API when multi-team mode is enabled. The secrets masker performs a direct membership test against registered base section and option names but fails to normalize team-prefixed sections (formatted as `[&lt;team&gt;=&lt;section&gt;]` in config files or `AIRFLOW__&lt;TEAM&gt;___&lt;SECTION&gt;__&lt;KEY&gt;` in environment variables) before applying the sensitivity check. An authenticated user with Viewer role and configuration-read permission can read team-scoped Celery broker URLs with embedded credentials in cleartext, while the same global configuration option is correctly masked. This is distinct from earlier masker bypass vulnerabilities (CVE-2026-48828 and CVE-2026-48892) and affects even deployments that upgraded to version 3.3.0. The fix normalizes team-scoped sections before masking checks; users should upgrade to apache-airflow 3.3.1 or later.

Affected products

  • Apache Airflow before 3.3.1

Identifiers

  • CVE-2026-65017
  • BIT-AIRFLOW-2026-65017
  • GHSA-c56v-8w4g-3mfm
  • PYSEC-2026-3993

Timeline

  • 2026-08-12: disclosed
  • 2026-08-04: patched: Fix merged in PR #70755 on apache/airflow main branch

References

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