Apache Airflow FAB LDAP Filter Injection (pre v3.6.4)
CVE-2026-46745 Published on May 25, 2026
Apache Airflow FAB provider: LDAP Filter Injection in FAB Auth Manager _search_ldap reachable via /auth/token
Apache Airflow FAB Auth Manager contains an LDAP filter injection vulnerability (CWE-90) that allows unauthenticated attackers to exfiltrate directory data or bypass authentication. Upgrade to apache-airflow-providers-fab 3.6.4 or later. If immediate upgrade is not possible, disable LDAP authentication until the provider can be updated.
Vulnerability Analysis
CVE-2026-46745 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is a LDAP Injection Vulnerability?
The software constructs all or part of an LDAP query using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended LDAP query when it is sent to a downstream component.
CVE-2026-46745 has been classified to as a LDAP Injection vulnerability or weakness.
Products Associated with CVE-2026-46745
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Affected Versions
Apache Software Foundation Apache Airflow FAB provider:- Before 3.6.4 is affected.