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

9.1 CriticalFix available

CVE-2016-4432 is a critical vulnerability (CVSS 9.1) in Apache Qpid Broker-j, published June 1, 2016. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.92%, the 95th percentile. Fixed in org.apache.qpid:qpid-broker-plugins-amqp-0-8-protocol 6.0.3.

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

8.92%Up 6.8 points since Feb 4, 2022

What each source reports

NVD Score used 9.1

Record: CVE-2016-4432
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:P/A:N
Weakness: CWE-287
Updated: 2026-11-02

CVE List No score

Record: CVE-2016-4432
Updated: 2026-11-02

EUVDEUVD-2018-0658 No score

Record: EUVD-2018-0658
Updated: 2026-11-03

GitHub AdvisoriesGHSA-q66c-h853-gqw2 9.1

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

Record: GHSA-q66c-h853-gqw2
CVSS 3.0: 9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-287
Updated: 2026-11-02

OSV 9.1

Record: CVE-2016-4432
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

OSVGHSA-q66c-h853-gqw2 9.1

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

Record: GHSA-q66c-h853-gqw2
CVSS 3.0: 9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness: CWE-287
Updated: 2026-11-02

OSVUBUNTU-CVE-2016-4432 9.1

Record: UBUNTU-CVE-2016-4432
CVSS 3.1: 9.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.0: 9.1 CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Updated: 2026-11-02

Affected products

apache qpid broker-j

Affected packages

Affected packages
Package	Affected	Fixed
`org.apache.qpid:qpid-broker-plugins-amqp-0-8-protocol` Maven	before 6.0.3	6.0.3
`org.apache.qpid:qpid-broker-plugins-amqp-1-0-protocol` Maven	before 6.0.3	6.0.3
`org.apache.qpid:qpid-broker-plugins-amqp-0-8-protocol` Maven	before 6.0.3, plus listed versions 0.240.260.280.300.326.0.06.0.16.0.2	6.0.3
`org.apache.qpid:qpid-broker-plugins-amqp-1-0-protocol` Maven	before 6.0.3, plus listed versions 0.240.260.280.300.326.0.06.0.16.0.2	6.0.3
`qpid-cpp` Ubuntu:16.04:LTS	All versions, plus listed versions 0.16-9build10.16-9ubuntu10.16-9ubuntu2	None known

History

History
When	Changed	Sources
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV

References

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