CVE-2017-18076: Debian Linux

High severity, CVSS 7.5. EPSS: 2.1% chance of exploitation in the next 30 days.

In strategy.rb in OmniAuth before 1.3.2, the authenticity_token value is improperly protected because POST (in addition to GET) parameters are stored in the session and become available in the environment of the callback phase.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Omniauth Omniauth: before 1.3.2 (fixed in 1.3.2)

Published 2018-01-26. Last modified 2026-06-17.