CVE-2016-0733 The Admin UI in Apache Ranger before 0.5.1 does not properly handle authentication requests that lack a password
Remote attackers can bypass authentication in Apache Ranger Admin UI by providing a valid username without a password.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-0733?
CVE-2016-0733 is a critical authentication bypass vulnerability in n/a, published on 12 Apr 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Admin UI in Apache Ranger before 0.5.1 does not properly handle authentication requests that lack a password, which allows remote attackers to bypass authentication by leveraging knowledge of a valid username.
Weakness: CWE-287
Which versions are affected by CVE-2016-0733?
2 open source packages ship an affected version, including org.apache.ranger:ranger. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.ranger:ranger Maven | All versions | 0.5.1 |
org.apache.ranger:ranger Maven | All versions | 0.5.1 |
Products include Apache Ranger.
How do I fix CVE-2016-0733?
Upgrade org.apache.ranger:ranger to 0.5.1 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2016-0733 being exploited?
There is no known exploitation of CVE-2016-0733 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2026-28672 Apache Ranger: OS Command Injection via Username in UnixUserGroupBuilder
- CVE-2026-32227 Apache Ranger: SQL Injection vulnerability in lookup functionality
- CVE-2026-40920 Apache Ranger: Privilege Escalation via URL Parameter
- CVE-2026-42537 Apache Ranger: Remote Code Execution via JDBC URL Injection
- CVE-2026-44416 Apache Ranger: Remote Code Execution via Arbitrary Class Instantiation
Sources
Also known as GHSA-j84c-j8qm-g47r.