LDAP injection in Apache Zeppelin - CVE-2026-44617
Published: August 25, 2026
Vulnerability identifier: #VU145156
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-44617
CWE-ID: CWE-90
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to manipulate LDAP search filters.
The vulnerability exists due to improper neutralization of special elements in the LdapRealm component when constructing LDAP search filters. A remote user can supply specially crafted input to manipulate LDAP search filters.
This issue is due to the use of RFC 4514 distinguished-name escaping instead of RFC 4515 filter escaping.
Affected software
Apache Zeppelin
How to mitigate CVE-2026-44617
Install security update from vendor's website.
Apache Zeppelin - update to 0.12.1