CVE-2024-4027

HIGH EPSS 34.4%

Published Jan 30, 20265mo ago · Modified Jun 17, 20261w ago

7.5 CVSS 3.1

High

Published Jan 30, 2026 5mo ago

Last Modified Jun 17, 2026 1w 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.

CVSS Details

Base Score

7.5

Exploitability

3.9

Impact

3.6

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity None

Availability High

Threat Intelligence

EPSS Exploit Probability

34.4% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-20 Improper Input Validation Validation

References 2

access.redhat.com https://access.redhat.com/security/cve/CVE-2024-4027
bugzilla.redhat.com https://bugzilla.redhat.com/show_bug.cgi?id=2276410

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.