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Vulnerability record · CVE-2016-8741 · published 15 May 2017

CVE-2016-8741: Apache qpid broker-j information exposure vulnerability

Apache · Qpid Broker J

The Apache Qpid Broker for Java can be configured to use different so called AuthenticationProviders to handle user authentication. Among the choices are the SCRAM-SHA-1 and SCRAM-SHA-256 AuthenticationProvider types. It was discovered that these AuthenticationProviders in Apache Qpid Broker for Java 6.0.x before 6.0.6 and 6.1.x before 6.1.1 prematurely terminate the SCRAM SASL negotiation if the provided user name does not exist thus allowing remote attacker to determine the existence of user accounts. The Vulnerability does not apply to AuthenticationProviders other than SCRAM-SHA-1 and SCRAM-SHA-256.

7.5 CVSS 3.1 High EPSS 6.3% · top 6.6% CWE-200 · Information exposure
7.5CVSS 3.1 base score, v2 5.0
6.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

The Apache Qpid Broker for Java can be configured to use different so called AuthenticationProviders to handle user authentication. Among the choices are the SCRAM-SHA-1 and SCRAM-SHA-256 AuthenticationProvider types. It was discovered that these AuthenticationProviders in Apache Qpid Broker for Java 6.0.x before 6.0.6 and 6.1.x before 6.1.1 prematurely terminate the SCRAM SASL negotiation if the provided user name does not exist thus allowing remote attacker to determine the existence of user accounts. The Vulnerability does not apply to AuthenticationProviders other than SCRAM-SHA-1 and SCRAM-SHA-256.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://qpid.2158936.n2.nabble.com/CVE-2016-8741-Apache-Qpid-Broker-for-Java-Information-Leakage-td7657025.html Vendor Advisory
http://www.securityfocus.com/bid/95136 Broken LinkThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037537 Broken LinkThird Party AdvisoryVDB Entry
https://issues.apache.org/jira/browse/QPID-7599 Issue Tracking
http://qpid.2158936.n2.nabble.com/CVE-2016-8741-Apache-Qpid-Broker-for-Java-Information-Leakage-td7657025.html Vendor Advisory
http://www.securityfocus.com/bid/95136 Broken LinkThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037537 Broken LinkThird Party AdvisoryVDB Entry
https://issues.apache.org/jira/browse/QPID-7599 Issue Tracking

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2016-8741), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.