CVE-2026-46745: apache-airflow-pro — Fix

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.

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CVSS v3.1 Score

5.3

MEDIUM

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

EPSS — Exploit Prediction

0.0079

Probability of exploitation

0.51%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-90 CWE-90

Affected Products

Vendor	Product	Versions
apache	apache-airflow-providers-fab	< 3.6.4

References

Advisories & Patches

https://github.com/apache/airflow/pull/66417 https://lists.apache.org/thread/dvfy0bs181xwsrjrd3y5c55ztbzm8yhh

Other References

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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-46745? +

CVE-2026-46745 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0079, placing it in the 1th percentile for exploitation probability.

What products are affected by CVE-2026-46745? +

CVE-2026-46745 affects products from apache, specifically: apache-airflow-providers-fab. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-46745? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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