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Vulnerability record · CVE-2013-1909 · published 23 August 2013

CVE-2013-1909: Redhat enterprise mrg improper input validation vulnerability

Redhat · Enterprise Mrg

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.

5.8 CVSS 2.0 Medium EPSS 1.6% · top 25.4% CWE-20 · Improper input validation
5.8CVSS 2.0 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:M/Au:N/C:P/I:P/A:N

Affected products

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

References

LinkTags
http://qpid.apache.org/releases/qpid-0.22/release-notes.html
http://rhn.redhat.com/errata/RHSA-2013-1024.html
http://secunia.com/advisories/53968 Vendor Advisory
http://secunia.com/advisories/54137 Vendor Advisory
http://svn.apache.org/viewvc?view=revision&revision=1460013 Patch
https://issues.apache.org/jira/browse/QPID-4918 Patch
http://qpid.apache.org/releases/qpid-0.22/release-notes.html
http://rhn.redhat.com/errata/RHSA-2013-1024.html
http://secunia.com/advisories/53968 Vendor Advisory
http://secunia.com/advisories/54137 Vendor Advisory
http://svn.apache.org/viewvc?view=revision&revision=1460013 Patch
https://issues.apache.org/jira/browse/QPID-4918 Patch

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

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Source: NIST National Vulnerability Database (record CVE-2013-1909), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.