CVE-2026-44616: CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in Apache Software Foundation Apache Zeppelin
Apache Zeppelin versions 0.6.0 through 0.12.0 contain an LDAP injection vulnerability in the ActiveDirectoryGroupRealm component. This flaw allows an authenticated attacker to inject LDAP filter syntax via the user-search endpoint and potentially expose directory information. The role-lookup path is also affected after successful LDAP authentication. The issue is fixed in version 0.12.1.
AI Analysis
Technical Summary
The vulnerability (CVE-2026-44616) in Apache Zeppelin arises from improper neutralization of special elements in LDAP queries (CWE-90). Specifically, the ActiveDirectoryGroupRealm constructs LDAP search filters without escaping user-controlled input, enabling an authenticated attacker to inject LDAP filter syntax through the user-search endpoint. This can lead to unauthorized exposure of directory information. Additionally, the role-lookup path is vulnerable after LDAP authentication. The affected versions are 0.6.0 through 0.12.0, with a fix implemented in version 0.12.1.
Potential Impact
An authenticated attacker can exploit this LDAP injection vulnerability to manipulate LDAP queries, potentially exposing sensitive directory information. The vulnerability impacts confidentiality and integrity but does not affect availability. The CVSS 3.1 base score is 6.5 (medium severity), reflecting network attack vector, low attack complexity, high privileges required, no user interaction, unchanged scope, and high impact on confidentiality and integrity.
Mitigation Recommendations
Users should upgrade Apache Zeppelin to version 0.12.1 or later, which addresses this LDAP injection vulnerability. No other mitigations or temporary fixes are indicated. Patch status is confirmed by the vendor advisory recommending the upgrade to 0.12.1.
CVE-2026-44616: CWE-90 Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection') in Apache Software Foundation Apache Zeppelin
Description
Apache Zeppelin versions 0.6.0 through 0.12.0 contain an LDAP injection vulnerability in the ActiveDirectoryGroupRealm component. This flaw allows an authenticated attacker to inject LDAP filter syntax via the user-search endpoint and potentially expose directory information. The role-lookup path is also affected after successful LDAP authentication. The issue is fixed in version 0.12.1.
CVSS v3.1
Score 6.5medium
Affected software
Apache Software Foundation
Apache Zeppelin
pkg:maven/org.apache.zeppelin/zeppelinRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability (CVE-2026-44616) in Apache Zeppelin arises from improper neutralization of special elements in LDAP queries (CWE-90). Specifically, the ActiveDirectoryGroupRealm constructs LDAP search filters without escaping user-controlled input, enabling an authenticated attacker to inject LDAP filter syntax through the user-search endpoint. This can lead to unauthorized exposure of directory information. Additionally, the role-lookup path is vulnerable after LDAP authentication. The affected versions are 0.6.0 through 0.12.0, with a fix implemented in version 0.12.1.
Potential Impact
An authenticated attacker can exploit this LDAP injection vulnerability to manipulate LDAP queries, potentially exposing sensitive directory information. The vulnerability impacts confidentiality and integrity but does not affect availability. The CVSS 3.1 base score is 6.5 (medium severity), reflecting network attack vector, low attack complexity, high privileges required, no user interaction, unchanged scope, and high impact on confidentiality and integrity.
Mitigation Recommendations
Users should upgrade Apache Zeppelin to version 0.12.1 or later, which addresses this LDAP injection vulnerability. No other mitigations or temporary fixes are indicated. Patch status is confirmed by the vendor advisory recommending the upgrade to 0.12.1.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-05-07T07:49:20.694Z
- State
- PUBLISHED
Threat ID: 6a6b7a619c2644c7f85890b9
Added to database: 07/30/2026, 16:22:57 UTC
Last enriched: 08/07/2026, 14:43:13 UTC
Last updated: 09/12/2026, 22:01:34 UTC
Views: 85
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.