CVE-2026-46745

MEDIUM

Apache Airflow FAB provider: LDAP Filter Injection in FAB Auth Manager _search_ldap reachable via /auth/token

Title source: cna

Description

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 (3)

Core 3

Core References

Patch patch

https://github.com/apache/airflow/pull/66417

Vendor Advisory vendor-advisory

https://lists.apache.org/thread/dvfy0bs181xwsrjrd3y5c55ztbzm8yhh

Mailing List

http://www.openwall.com/lists/oss-security/2026/05/24/10

Scores

CVSS v3 5.3

EPSS 0.0079

EPSS Percentile 51.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-90

Status published

Products (2)

apache/apache-airflow-providers-fab < 3.6.4

Apache Software Foundation/Apache Airflow FAB provider < 3.6.4

Published May 25, 2026

Tracked Since May 25, 2026