LDAP Injection Affecting apache-airflow-providers-fab package, versions [,3.6.4rc1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-APACHEAIRFLOWPROVIDERSFAB-16875118
- published26 May 2026
- disclosed25 May 2026
- creditVenkatraman Kumar
Introduced: 25 May 2026
CVE-2026-46745 (opens in a new tab)How to fix?
Upgrade apache-airflow-providers-fab to version 3.6.4rc1 or higher.
Overview
apache-airflow-providers-fab is a Provider package apache-airflow-providers-fab for Apache Airflow
Affected versions of this package are vulnerable to LDAP Injection through the _ldap_bind_indirect and nested group search code in override.py. An attacker can manipulate the LDAP username or distinguished name used in the search filters by supplying crafted login input, causing the application to query unintended LDAP entries and authenticate or enumerate accounts incorrectly. This can let an attacker bypass intended LDAP lookup constraints and gain unauthorized access to the Airflow web application.
Workarounds
- Disable LDAP authentication in Airflow FAB Auth Manager until you can upgrade
apache-airflow-providers-fab; this prevents unauthenticated attackers from abusing LDAP filter injection to exfiltrate directory data or bypass authentication.