Medium

drupal/reverse_proxy_header - SA-CONTRIB-2025-111

  • Disclosed: 24.09.2025
  • Updated: 11.10.2026 12:18

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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PlatformPackageVulnerable versionsFixed 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 score 5.3/10
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 (Drupal module), 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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