The Python client in Apache Qpid before 2.2 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
https://issues.apache.org/jira/browse/QPID-4918
http://svn.apache.org/viewvc?view=revision&revision=1460013
http://secunia.com/advisories/54137
http://secunia.com/advisories/53968
http://rhn.redhat.com/errata/RHSA-2013-1024.html
http://qpid.apache.org/releases/qpid-0.22/release-notes.html
Published: 2013-08-23
Updated: 2025-04-11
Base Score: 5.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Severity: High
Base Score: 8.7
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00586