drupal/reverse_proxy_header - SA-CONTRIB-2025-111
This module allows you to specify an HTTP header name to determine the client's IP address.
The module doesn't sufficiently handle all cases under the scenario if Drupal Core settings $settings['reverse_proxy'] is set to TRUE and $settings['reverse_proxy_addresses'] is configured.
This vulnerability allows an attacker to spoof a request IP address (as Drupal sees it), potentially bypassing a variety of controls.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | drupal/reverse_proxy_header | < 1.1.2 | 1.1.2 |
| Drupal module | drupal/reverse_proxy_header | < 1.1.2 | 1.1.2 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-1288- Platform
- Composer, Drupal
- Package
drupal/reverse_proxy_header- Disclosed
- 24.09.2025
- Updated
- 11.10.2026 12:18
Sources and licenses
OSV / GitHub Advisory Database - GHSA-fg8x-q69g-4qp3 - CC BY 4.0
OSV / GitHub Advisory Database - DRUPAL-CONTRIB-2025-111 - CC BY-SA 2.0; code GPL-2.0-or-later
Vulnerability history: drupal/reverse_proxy_header
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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