CVE-2026-44617

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.

Score

CVSS 3.1 6.5 Medium

Status

Analyzed - security@apache.org

Published

2026-07-30

Last modified

2026-10-23

Weaknesses

CWE-90

Affected products

• Zeppelin (Apache)
• Apache Zeppelin (Apache Software Foundation)

References

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