# CVE-2026-44617

## Summary

- **CVE ID:** CVE-2026-44617
- **Severity:** MEDIUM
- **CVSS Score:** 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
- **CWE:** CWE-90
- **Published:** Jul 30, 2026
- **Last Modified:** Jul 31, 2026

## Description

LDAP filter injection vulnerability in Apache Zeppelin. LdapRealm used RFC 4514 distinguished-name escaping when constructing LDAP search filters instead of RFC 4515 filter escaping, leaving special filter characters insufficiently escaped.                   This is an incomplete fix of CVE-2024-31867. This issue affects Apache Zeppelin versions 0.11.1, 0.11.2, and 0.12.0. Users are recommended to upgrade to version 0.12.1, which fixes this issue.

## Affected Products

- Apache Software Foundation — Apache Zeppelin (0.11.1)

## References

- [CNA](https://github.com/apache/zeppelin/pull/5226)
- [CNA](https://www.cve.org/CVERecord?id=CVE-2024-31867)
- [CNA](https://lists.apache.org/thread/s65t6n3s1v4j5b1w7zvv5w73ko69m1zv)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.52%
- **EPSS Percentile:** 42.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._