Open-Source Security Intelligence

Know every vulnerability
before it knows you.

DevGuard continuously monitors your dependencies and alerts you when CVEs like this one affect your stack — with real-time threat intelligence built for developers.

Search

GHSA-x5mq-jjr3-vmx6

MediumCVSS 5.3 / 10
Published Jan 21, 2025·Last modified Feb 4, 2026
Affected Components(0)

No affected components available

Description

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
Risk Scores
Base Score
5.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the integrity of the data.

Threat Intelligence
4.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.48%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

Browse More

Scan your project

Continuously monitor your dependencies and get alerted when vulnerabilities like this one affect your stack.

Checkout DevGuard