Bitwarden Server 1.35.1 allows SSRF because it does not consider certain IPv6 addresses (ones beginning with fc, fd, fe, or ff, and the :: address) and certain IPv4 addresses (0.0.0.0/8, 127.0.0.0/8, and 169.254.0.0/16).
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Server | Bitwarden | 1.35.1 (including) | 1.35.1 (including) |