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
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
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
- Remote denial of service in Undertow
- openEuler 24.03 LTS SP3 update for undertow
- openEuler 24.03 LTS SP2 update for undertow
- openEuler 24.03 LTS SP1 update for undertow
- openEuler 24.03 LTS update for undertow
- openEuler 22.03 LTS SP4 update for undertow
- openEuler 20.03 LTS SP4 update for undertow
- IBM DevOps Test Performance update for Undertow