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    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.

    Published:Jul 30, 2026
    Last Modified:Jul 31, 2026
    EPS:Jul 30, 2026
    EPSS Score:0.00243
    CVSS Score:6.5

    Affected Products

    Vendor
    Apache
    Product
    Zeppelin

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-136 LDAP Injection

    Related CVEs

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    CVE-2026-44616 (CVSS 6.5) — LDAP injection vulnerability in Apache Zeppelin. ActiveDirectoryGroupRealm constructed LDAP search filters wit…
    CVE-2026-44613 (CVSS 6.1) — Cross-Site Request Forgery (CSRF) vulnerability in Apache Zeppelin. The default CORS configuration allowed cro…
    CVE-2024-51775 (CVSS 5.3) — Missing Origin Validation in WebSockets vulnerability in Apache Zeppelin. The attacker could access the Zeppe…
    CVE-2024-41177 (CVSS 6.1) — Incomplete Blacklist to Cross-Site Scripting vulnerability in Apache Zeppelin. This issue affects Apache Zepp…
    CVE-2024-52279 (CVSS 5.3) — Improper Input Validation vulnerability in Apache Zeppelin. The fix for JDBC URL validation in CVE-2024-31864 …
    CVE-2024-41169 (CVSS 7.5) — The attacker can use the raft server protocol in an unauthenticated way. The attacker can see the server's res…
    CVE-2024-31867 (CVSS 6.5) — Improper Input Validation vulnerability in Apache Zeppelin. The attackers can execute malicious queries by se…
    CVE-2024-31868 (CVSS 6.1) — Improper Encoding or Escaping of Output vulnerability in Apache Zeppelin. The attackers can modify helium.jso…
    CVE-2024-31866 (CVSS 9.8) — Improper Encoding or Escaping of Output vulnerability in Apache Zeppelin. The attackers can execute shell scr…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High