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---
stage: Secure
group: Dynamic Analysis
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments
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---
# X-Backend-Server header exposes server information
## Description
The target website returns the `X-Backend-Server` header which includes potentially internal/hidden IP addresses
or hostnames. By exposing these values, attackers may attempt to circumvent security proxies and access these
hosts directly.
## Remediation
Consult your proxy/load balancer documentation or provider on how to disable revealing the
`X-Backend-Server` header value.
## Details
| ID | Aggregated | CWE | Type | Risk |
|:---|:--------|:--------|:--------|:--------|
| 16.4 | true | 16 | Passive | Info |
## Links
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- [CWE ](https://cwe.mitre.org/data/definitions/16.html )
