Apache Zeppelin: LDAP injection in ActiveDirectoryGroupRealm filter construction

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-44616
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-30 16:17:12 UTC
Updated2026-08-05 17:23:15 UTC
DescriptionLDAP injection vulnerability in Apache Zeppelin. ActiveDirectoryGroupRealm constructed LDAP search filters without escaping user-controlled input, allowing an authenticated attacker to inject LDAP filter syntax through the user-search endpoint                   and potentially expose directory information. The role-lookup path was also affected after successful LDAP authentication. This issue affects Apache Zeppelin versions 0.6.0 through 0.12.0. Users are recommended to upgrade to version 0.12.1, which                   fixes this issue.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from ADP

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

EPSS: 0.004490000 probability, percentile 0.368950000 (date 2026-08-09)

Problem Types: CWE-90 | CWE-90 CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Zeppelin All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Zeppelin affected 0.6.0 0.12.1 semver Not specified

References

ReferenceSourceLinkTags
lists.apache.org/thread/p6llqpvcszpg1wc8kx5ncfkdbms3g0rn [email protected] lists.apache.org Mailing List, Vendor Advisory
www.openwall.com/lists/oss-security/2026/07/30/3 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
github.com/apache/zeppelin/pull/5226 [email protected] github.com Issue Tracking, Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Andrea Cosentino from Apache Software Foundation (en)

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