https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-03T14:30:02.568859+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/bdu:2025-01640 bdu:2025-01640 2026-10-03T14:30:02.646508+00:00 bdu:2025-01640 https://cve.radiocsirt.org/vuln/euvd-2026-211155 EUVD-2026-211155 2026-10-03T14:30:02.646553+00:00 EUVD-2026-211155 https://cve.radiocsirt.org/vuln/fkie_cve-2025-24013 fkie_cve-2025-24013 2026-10-03T14:30:02.646567+00:00

CodeIgniter is a PHP full-stack web framework. Prior to 4.5.8, CodeIgniter lacked 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. This vulnerability is fixed in 4.5.8.

 https://cve.radiocsirt.org/vuln/ghsa-x5mq-jjr3-vmx6 GHSA-x5mq-jjr3-vmx6 — Missing validation of header name and value in codeigniter4/framework 2026-10-03T14:30:02.646606+00:00

Affected: Packagist: codeigniter4/framework

### 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