What is CVE-2026-46745?

CVE-2026-46745 is a medium-severity vulnerability in Apache Apache-Airflow-Providers-Fab, classified under LDAP Injection. CVSS score: 5.3/10. Published 2026-05-25.

How severe is CVE-2026-46745?

Medium severity. CVSS v3 base score is 5.3 out of 10.

LDAP Injection in Apache Apache-Airflow-Providers-Fab

CVE-2026-46745

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.

Published 2026-05-25 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.3th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.008 · change: +0.002

Affected products

Apache Apache-Airflow-Providers-Fab
Apache Software Foundation Airflow Fab Provider — versions 0

Weakness classification (CWE)

CWE-90 — LDAP Injection

References

github.com/apache/airflow/pull/66417 (Patch, patch, Issue Tracking)
lists.apache.org/thread/dvfy0bs181xwsrjrd3y5c55ztbzm8yhh (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-46745?: CVE-2026-46745 is a medium-severity vulnerability in Apache Apache-Airflow-Providers-Fab, classified under LDAP Injection. CVSS score: 5.3/10. Published 2026-05-25.
How severe is CVE-2026-46745?: Medium severity. CVSS v3 base score is 5.3 out of 10.