Description
LDAP 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.
Affected products
apache: zeppelin
References3
- lists.apache.org/thread/p6llqpvcszpg1wc8kx5ncfkdbms3g0rn Mailing ListVendor Advisory
- github.com/apache/zeppelin/pull/5226 Issue TrackingPatch
- www.openwall.com/lists/oss-security/2026/07/30/3 Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
6.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N - EPSS — exploit probability
- 1% percentile: 56 · as of 13 November 2026
- CWE
- CWE-90
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