CVE-2025-24013: Codeigniter4/framework Missing Validation Of Header Name Vulnerability

MODERATE
Advisory Identifier: GHSA-x5mq-jjr3-vmx6
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CVSS 5.3
CWE-436
Published
Advisory Summary

CVE-2025-24013 is a MODERATE (CVSS 5.3) missing validation of header name vulnerability (CWE-436: Interpretation Conflict) affecting Codeigniter4/framework libraries in the Packagist ecosystem. The issue involves missing validation of header name and value in codeigniter4/framework. Remediation is available by upgrading affected packages to version 4.5.8.

CVE-2025-24013 at a Glance

CVE Identifier CVE-2025-24013
GHSA Identifier GHSA-x5mq-jjr3-vmx6
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-436: Interpretation Conflict
Affected Product Codeigniter4/framework
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:L/A:N).

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 Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-24013

To remediate this vulnerability, upgrade all affected Codeigniter4/framework dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

codeigniter4/framework fixed: 4.5.8 
Upgrade codeigniter4/framework to 4.5.8
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 codeigniter4/framework

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-24013, inspect your project dependencies for Codeigniter4/framework:

inspect dependencies for codeigniter4/framework

Analyze the terminal output to locate any version of Codeigniter4/framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.5.8), 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-436: Interpretation Conflict, where product a handles inputs or steps differently than product b, which causes a to perform incorrect actions based on its perception of b's state. In Codeigniter4/framework, 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

### Impact Lack of proper header validation for its name and value. The potential attacker can construct deliberately malformed headers with `Header` class. This could disrupt application functionality, potentially causing errors or generating invalid HTTP requests. In some cases, these malformed requests might lead to a DoS scenario if a remote service’s web application firewall interprets them as malicious and blocks further communication with the application. ### Patches Upgrade to v4.5.8 or later. ### Workarounds Validate HTTP header keys and/or values if using user-supplied values before passing them to `Header` class. ### Differences from CVE-2023-29197 1. **Affected Software**: * CVE-2023-29197 specifically addresses a vulnerability in the `guzzlehttp/psr7` library. * The reported issue in this Security Advisory is within the **CodeIgniter4** framework and does not depend on or use the `guzzlehttp/psr7` library. 2. **Root Cause and Implementation**: * The vulnerability reported arises from an issue in the **Header class** of CodeIgniter4, which is unrelated to the functionality or implementation of `guzzlehttp/psr7`. 3. **Scope of Impact**: * The vulnerability described in this Security Advisory affects applications built with the **CodeIgniter4** framework, which does not use or rely on the `guzzlehttp/psr7` library. ### References * https://datatracker.ietf.org/doc/html/rfc7230#section-3.2 * https://github.com/advisories/GHSA-wxmh-65f7-jcvw

CVE-2025-24013 Affected Codeigniter4/framework Versions

1 component(s)
Fixed Versions:
4.5.8
Product / Package Ecosystem Affected Versions Fixed Version
codeigniter4/framework
 Packagist
< 4.5.8
4.5.8

References

GitHub Advisory / Wiki ADVISORY
https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6
NVD — CVE-2025-24013 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-24013
Security Fix Commit FIX COMMIT
https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6
datatracker.ietf.org/doc/html/rfc7230 WEB
https://datatracker.ietf.org/doc/html/rfc7230#section-3.2
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-wxmh-65f7-jcvw
Codeigniter4/framework Source Repository REPOSITORY
https://github.com/codeigniter4/CodeIgniter4

Frequently Asked Questions

What is CVE-2025-24013?
CVE-2025-24013 is a security vulnerability in Codeigniter4/framework involving Missing validation of header name and value in codeigniter4/framework under CWE-436: Interpretation Conflict.
Which Codeigniter4/framework versions are affected?
Affected versions include releases prior to 4.5.8 across affected packages: codeigniter4/framework.
What version fixes CVE-2025-24013?
Upgrading to 4.5.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is codeigniter4/framework affected?
Yes, codeigniter4/framework is affected in releases prior to 4.5.8. Upgrade your dependency to 4.5.8 or later.
What is the CVSS score of CVE-2025-24013?
CVE-2025-24013 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:L/A:N.
What CWE is associated with CVE-2025-24013?
CVE-2025-24013 is classified under CWE-436: Interpretation Conflict (Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.).
How can I check Packagist dependencies for CVE-2025-24013?
Run the dependency tree command: 'inspect dependencies for codeigniter4/framework'. 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-x5mq-jjr3-vmx6",
  "modified" : "2025-01-21T21:13:41Z",
  "published" : "2025-01-21T21:13:40Z",
  "aliases" : [ "CVE-2025-24013" ],
  "summary" : "Missing validation of header name and value in codeigniter4/framework",
  "details" : "### Impact\nLack of proper header validation for its name and value. The potential attacker can construct deliberately malformed headers with `Header` class. This could disrupt application functionality, potentially causing errors or generating invalid HTTP requests. In some cases, these malformed requests might lead to a DoS scenario if a remote service’s web application firewall interprets them as malicious and blocks further communication with the application.\n\n### Patches\nUpgrade to v4.5.8 or later.\n\n### Workarounds\nValidate HTTP header keys and/or values if using user-supplied values before passing them to `Header` class.\n\n### Differences from CVE-2023-29197\n\n1. **Affected Software**:\n    * CVE-2023-29197 specifically addresses a vulnerability in the `guzzlehttp/psr7` library.\n    * The reported issue in this Security Advisory is within the **CodeIgniter4** framework and does not depend on or use the `guzzlehttp/psr7` library.\n\n2. **Root Cause and Implementation**:\n    * The vulnerability reported arises from an issue in the **Header class** of CodeIgniter4, which is unrelated to the functionality or implementation of `guzzlehttp/psr7`.\n\n3. **Scope of Impact**:\n    * The vulnerability described in this Security Advisory affects applications built with the **CodeIgniter4** framework, which does not use or rely on the `guzzlehttp/psr7` library.\n\n### References\n* https://datatracker.ietf.org/doc/html/rfc7230#section-3.2\n* https://github.com/advisories/GHSA-wxmh-65f7-jcvw",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "codeigniter4/framework"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.5.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-x5mq-jjr3-vmx6"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-24013"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/codeigniter4/CodeIgniter4/commit/5f8aa24280fb09947897d6b322bf1f0e038b13b6"
  }, {
    "type" : "WEB",
    "url" : "https://datatracker.ietf.org/doc/html/rfc7230#section-3.2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-wxmh-65f7-jcvw"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/codeigniter4/CodeIgniter4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-436" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-01-21T21:13:40Z",
    "nvd_published_at" : "2025-01-20T16:15:28Z"
  }
}