Resource exhaustion in Undertow - CVE-2024-4027

 

Resource exhaustion in Undertow - CVE-2024-4027

Published: February 13, 2026


Vulnerability identifier: #VU122827
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-4027
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in HttpServletRequestImpl.getParameterNames(). A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Affected software

Undertow
Rational Performance Tester
DevOps Test Performance
openEuler
undertow
undertow-javadoc

How to mitigate CVE-2024-4027

Install updates from vendor's website.

Undertow - update to 2.3.21
DevOps Test Performance - update to 11.0.8
undertow - addressed in versions 1.4.0-10, 1.4.0-11
undertow-javadoc - addressed in versions 1.4.0-10, 1.4.0-11

External References

Related Security Bulletins