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.

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS

0.8% chance of exploitation in the next 30 days; higher than 57% of CVEs (scores of 2026-10-25)

CWE

CWE-90

Published

2026-07-30

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

Affected

• apache:zeppelin

References

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

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