Ruby · Doorkeeper · CVE-2016-6582
**Name of the Vulnerable Software and Affected Versions**
Doorkeeper gem versions prior to 4.2.0
**Description**
The issue allows remote attackers to conduct replay attacks or revoke arbitrary tokens by leveraging the failure to implement the OAuth 2.0 Token Revocation specification.
**Recommendations**
For versions prior to 4.2.0, update to version 4.2.0 or later to resolve the issue.