Improper exposure of client IP addresses in net/http before Go 1.17.12 and Go 1.18.4 can be triggered by calling httputil.ReverseProxy.ServeHTTP with a Request.Header map containing a nil value for the X-Forwarded-For header, which causes ReverseProxy to set the client IP as the value of the X-Forwarded-For header.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Go | Golang | * | 1.17.12 (excluding) |
| Go | Golang | 1.18.0 (including) | 1.18.4 (excluding) |