CVE-2025-10929: Drupal/reverse proxy header Drupal Reverse Proxy Header Allows Vulnerability

MODERATE
Advisory Identifier: GHSA-fg8x-q69g-4qp3
Share
CVSS 5.3
CWE-1288
Published
Advisory Summary

CVE-2025-10929 is a MODERATE (CVSS 5.3) drupal reverse proxy header allows vulnerability (CWE-1288: Improper Validation of Consistency within Input) affecting Drupal/reverse proxy header libraries in the Packagist ecosystem. The issue involves drupal reverse proxy header allows manipulating user-controlled variables. Remediation is available by upgrading affected packages to version 1.1.2.

CVE-2025-10929 at a Glance

CVE Identifier CVE-2025-10929
GHSA Identifier GHSA-fg8x-q69g-4qp3
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-1288: Improper Validation of Consistency within Input
Affected Product Drupal/reverse proxy header
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability Low (A:L)

How to Fix CVE-2025-10929

To remediate this vulnerability, upgrade all affected Drupal/reverse proxy header dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

drupal/reverse_proxy_header fixed: 1.1.2 
Upgrade drupal/reverse_proxy_header to 1.1.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for drupal/reverse_proxy_header

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-10929, inspect your project dependencies for Drupal/reverse proxy header:

inspect dependencies for drupal/reverse_proxy_header

Analyze the terminal output to locate any version of Drupal/reverse proxy header in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.1.2), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1288: Improper Validation of Consistency within Input, where the product receives a complex input with multiple elements or fields that must be consistent with each other, but it does not validate or incorrectly validates that the input is actually consistent. In Drupal/reverse proxy header, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Improper Validation of Consistency within Input vulnerability in Drupal Reverse Proxy Header allows Manipulating User-Controlled Variables. This issue affects Reverse Proxy Header: from 0.0.0 before 1.1.2.

CVE-2025-10929 Affected Drupal/reverse proxy header Versions

1 component(s)
Fixed Versions:
1.1.2
Product / Package Ecosystem Affected Versions Fixed Version
drupal/reverse_proxy_header
 Packagist
< 1.1.2
1.1.2

References

NVD — CVE-2025-10929 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-10929
www.drupal.org/sa-contrib-2025-111 WEB
https://www.drupal.org/sa-contrib-2025-111

Frequently Asked Questions

What is CVE-2025-10929?
CVE-2025-10929 is a security vulnerability in Drupal/reverse proxy header involving Drupal Reverse Proxy Header allows Manipulating User-Controlled Variables under CWE-1288: Improper Validation of Consistency within Input.
Which Drupal/reverse proxy header versions are affected?
Affected versions include releases prior to 1.1.2 across affected packages: drupal/reverse_proxy_header.
What version fixes CVE-2025-10929?
Upgrading to 1.1.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is drupal/reverse_proxy_header affected?
Yes, drupal/reverse_proxy_header is affected in releases prior to 1.1.2. Upgrade your dependency to 1.1.2 or later.
What is the CVSS score of CVE-2025-10929?
CVE-2025-10929 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
What CWE is associated with CVE-2025-10929?
CVE-2025-10929 is classified under CWE-1288: Improper Validation of Consistency within Input (The product receives a complex input with multiple elements or fields that must be consistent with each other, but it does not validate or incorrectly validates that the input is actually consistent.).
How can I check Packagist dependencies for CVE-2025-10929?
Run the dependency tree command: 'inspect dependencies for drupal/reverse_proxy_header'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fg8x-q69g-4qp3",
  "modified" : "2025-10-30T17:05:15Z",
  "published" : "2025-10-30T00:31:03Z",
  "aliases" : [ "CVE-2025-10929" ],
  "summary" : "Drupal Reverse Proxy Header allows Manipulating User-Controlled Variables",
  "details" : "Improper Validation of Consistency within Input vulnerability in Drupal Reverse Proxy Header allows Manipulating User-Controlled Variables. This issue affects Reverse Proxy Header: from 0.0.0 before 1.1.2.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "drupal/reverse_proxy_header"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.1.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-10929"
  }, {
    "type" : "WEB",
    "url" : "https://www.drupal.org/sa-contrib-2025-111"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1288" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-30T17:05:15Z",
    "nvd_published_at" : "2025-10-30T00:15:34Z"
  }
}