CVE-2016-4432 AMQP 0-8, 0-9, 0-91, and 0-10 connection handling in Apache Qpid Java before 6.0.3 might allow remote attackers to bypass authentication

What is CVE-2016-4432?

CVE-2016-4432 is a critical authentication bypass vulnerability in n/a, published on 1 Jun 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The AMQP 0-8, 0-9, 0-91, and 0-10 connection handling in Apache Qpid Java before 6.0.3 might allow remote attackers to bypass authentication and consequently perform actions via vectors related to connection state logging.

Weakness: CWE-287

Which versions are affected by CVE-2016-4432?

4 open source packages ship an affected version, including org.apache.qpid:qpid-broker-plugins-amqp-0-8-protocol and org.apache.qpid:qpid-broker-plugins-amqp-1-0-protocol. It affects 1 product.

Products include Apache Qpid Broker-J.

How do I fix CVE-2016-4432?

Upgrade org.apache.qpid:qpid-broker-plugins-amqp-0-8-protocol to 6.0.3 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2016-4432 being exploited?

There is no known exploitation of CVE-2016-4432 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2026-92609 Apache Qpid Broker-J: Missing HTTP-session renewal after successful authentication Critical 9.8
• CVE-2017-15702 Apache Qpid Broker vulnerable to authentication port spoofing Critical 9.8
• CVE-2026-92550 Denial of service in Apache Qpid Broker-J High 7.5
• CVE-2026-92560 Denial of service in Apache Qpid Broker-J High 7.5
• CVE-2026-92564 Denial of service in Apache Qpid Broker-J High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-q66c-h853-gqw2, UBUNTU-CVE-2016-4432.