CVE-2016-11086: OAuth-Ruby Project OAuth-Ruby

High severity, CVSS 7.4. EPSS: 0.9% chance of exploitation in the next 30 days.

lib/oauth/consumer.rb in the oauth-ruby gem through 0.5.4 for Ruby does not verify server X.509 certificates if a certificate bundle cannot be found, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information.

Affected products

• OAuth-Ruby Project OAuth-Ruby: up to and including 0.5.4

Published 2020-09-24. Last modified 2026-06-17.