CVE-2012-5822: Mozilla Zamboni

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

The contribution feature in Zamboni 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, related to use of the Python urllib2 library.

Affected products

• Mozilla Zamboni: affected versions not specified

Published 2012-11-04. Last modified 2026-06-16.