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Fencer Intel
high 7.5

CVE-2013-1909 json

Apache Qpid Python client Improper certificate validation

published 2013-08-23 13 y ago modified 2026-06-16 4 mo ago also GHSA-3g2p-7c6p-vj8c , PYSEC-2013-25 , EUVD-2013-0033

cvss
7.5
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
1.8%
EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits
0
none known

Summary

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.

Patch / fix

  • pypi qpid-python 0.22
  • qpid-cpp enterprise mrg 2 0.18-17.el6_4
  • qpid-qmf enterprise mrg 2 0.18-18.el6_4
  • qpid-java enterprise mrg 2 0.18-8.el6_4
  • qpid-tools enterprise mrg 2 0.18-10.el6_4
  • python-qpid enterprise mrg 2 0.18-5.el6_4
  • ruby-qpid-qmf enterprise mrg 2 0.18-18.el6_4
  • python-qpid-qmf enterprise mrg 2 0.18-18.el6_4
  • qpid-cpp-client enterprise mrg 2 0.18-17.el6_4

red hat advisories RHSA-2013:1024

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-1909 updated cvss 4.3

python-qpid: client does not validate qpid server TLS/SSL certificate

  • Red Hat Enterprise Linux 6 python-qpid
    affected: no fix planned “Will not fix”
  • Red Hat MRG Grid Execute Node for RHEL 6 ComputeNode v.2 qpid-cpp 0.18-17.el6_4, qpid-qmf 0.18-18.el6_4, python-qpid 0.18-5.el6_4, qpid-tools 0.18-10.el6_4, ruby-qpid-qmf 0.18-18.el6_4, python-qpid-qmf 0.18-18.el6_4, +4 more Red Hat MRG Messaging for RHEL 6 Server v.2 qpid-cpp 0.18-17.el6_4, qpid-java 0.18-8.el6_4, qpid-qmf 0.18-18.el6_4, python-qpid 0.18-5.el6_4, qpid-tools 0.18-10.el6_4, ruby-qpid-qmf 0.18-18.el6_4, +13 more
    fixed: vendor fix RHSA-2013:1024
  • Red Hat Satellite 6 python-qpid
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.82% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi qpid-python
<0.22
0.22

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.