CVE-2026-44617 Apache Zeppelin: LDAP filter injection in LdapRealm — incomplete fix of CVE-2024-31867
Attackers can inject LDAP filters in Apache Zeppelin due to improper escaping, potentially bypassing authentication or reading directory data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44617?
CVE-2026-44617 is a medium-severity vulnerability in Apache Zeppelin, published on 30 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-90
Which versions are affected by CVE-2026-44617?
It affects 1 product.
Products include Apache Zeppelin.
How do I fix CVE-2026-44617?
No fix has been published for CVE-2026-44617 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-44617 being exploited?
There is no known exploitation of CVE-2026-44617 in the wild and no public exploit code.
Other vulnerabilities in Apache Zeppelin
- CVE-2024-31864 Apache Zeppelin: Remote code execution by adding malicious JDBC connection string
- CVE-2024-31866 Apache Zeppelin: Interpreter download command does not escape malicious code injection
- CVE-2019-10095 bash command injection in spark interpreter
- CVE-2018-1317 Improper Authentication in Apache Zeppelin
- CVE-2017-12619 Session Fixation in Apache Zeppelin
Sources
Also known as GHSA-853r-vxg2-55r2.