The actionpack ruby gem before 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6 suffers from a possible denial of service vulnerability in the Token Authentication logic in Action Controller due to a too permissive regular expression. Impacted code uses authenticate_or_request_with_http_token or authenticate_with_http_token for request authentication.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Rails | Rubyonrails | * | 5.2.4.6 (excluding) |
| Rails | Rubyonrails | 5.2.5 (including) | 5.2.6 (excluding) |
| Rails | Rubyonrails | 6.0.0 (including) | 6.0.3.7 (excluding) |
| Rails | Rubyonrails | 6.1.0 (including) | 6.1.3.2 (excluding) |