Vulnerability · Published May 25, 2026 · Assigned by apache
CVE-2026-46745Apache Airflow FAB provider: LDAP Filter Injection in FAB Auth Manager _search_ldap reachable via /auth/token
Medium 5.3
In plain English
A medium-severity security flaw in Apache Airflow FAB provider from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | apache-airflow-providers-fab | 3.6.4 | GHSA-g283-w6fp-c4fc |
| PyPI | apache-airflow-providers-fab | 3.6.4 | PYSEC-2026-2366 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache Airflow FAB provider | 0 – before 3.6.4 |
Weakness: CWE-90 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N