CVE-2024-4027 – Undertow: outofmemoryerror in httpservletrequestimpl.getparameternames() can cause remote dos attacks

CVE ID : CVE-2024-4027

Published : Jan. 30, 2026, 2:25 p.m. | 45 minutes ago

Description : A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames() can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service (DoS) attack.

Severity: 7.5 | HIGH

Visit the link for more details, such as CVSS details, affected products, timeline, and more…