CVE-2015-9231: ITERM2

High severity, CVSS 7.5. EPSS: 2.2% chance of exploitation in the next 30 days.

iTerm2 3.x before 3.1.1 allows remote attackers to discover passwords by reading DNS queries. A new (default) feature was added to iTerm2 version 3.0.0 (and unreleased 2.9.x versions such as 2.9.20150717) that resulted in a potential information disclosure. In an attempt to see whether the text under the cursor (or selected text) was a URL, the text would be sent as an unencrypted DNS query. This has the potential to result in passwords and other sensitive information being sent in cleartext without the user being aware.

Affected products

• ITERM2 ITERM2: version 2.9.20151111 only; version 2.9.20151229 only; version 2.9.20160102 only; version 2.9.20160113 only; version 2.9.20160206 only; version 2.9.20160313 only; …

Published 2017-09-20. Last modified 2026-06-17.