LDAP Injection Affecting org.apache.zeppelin:zeppelin-server package, versions [0.11.1,0.12.1)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published2 Aug 2026
- disclosed30 Jul 2026
- creditdecsecre452
Introduced: 30 Jul 2026
NewCVE-2026-44617 (opens in a new tab)How to fix?
Upgrade org.apache.zeppelin:zeppelin-server to version 0.12.1 or higher.
Overview
org.apache.zeppelin:zeppelin-server is a web-based notebook that enables interactive data analytics. You can make beautiful data-driven, interactive and collaborative documents with SQL, Scala and more.
Affected versions of this package are vulnerable to LDAP Injection through the expandFilterTemplate and LDAP search filter construction paths in LdapRealm. An attacker can alter the LDAP query semantics by supplying crafted usernames or other user-controlled values that are interpolated into search filters without RFC 4515 escaping. When Zeppelin’s LDAP realm builds search filters from those inputs, special characters such as (, ), and * can break out of the intended filter clause and inject additional LDAP conditions. This can let an attacker bypass authentication or enumerate unintended directory entries, causing unauthorized login access or exposure of LDAP-backed user and group information.