CVE-2026-46745: Apache Airflow FAB Auth Manager contains an LDAP filter injection vulnerability

May 26, 2026 (updated June 30, 2026)

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.

References

github.com/advisories/GHSA-g283-w6fp-c4fc
github.com/apache/airflow/commit/3f7756bea71a7c7988511ec0557314ffb15fbe5e
github.com/apache/airflow/pull/66417
lists.apache.org/thread/dvfy0bs181xwsrjrd3y5c55ztbzm8yhh
nvd.nist.gov/vuln/detail/CVE-2026-46745

Code Behaviors & Features

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