CVE-2024-4027

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) Se encontró una vulnerabilidad en Undertow. Los servlets que utilizan un método que llama a HttpServletRequestImpl.getParameterNames() pueden causar un OutOfMemoryError cuando el cliente envía una solicitud con nombres de parámetros grandes. Este problema puede ser explotado por un usuario no autorizado para causar un ataque remoto de denegación de servicio (DoS).

30 Jan 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-30 15:16

Updated : 2026-06-17 08:00

NVD link : CVE-2024-4027

Mitre link : CVE-2024-4027

CVE.ORG link : CVE-2024-4027

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

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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."}, {"lang": "es", "value": "Se encontr\u00f3 una vulnerabilidad en Undertow. Los servlets que utilizan un m\u00e9todo que llama a HttpServletRequestImpl.getParameterNames() pueden causar un OutOfMemoryError cuando el cliente env\u00eda una solicitud con nombres de par\u00e1metros grandes. Este problema puede ser explotado por un usuario no autorizado para causar un ataque remoto de denegaci\u00f3n de servicio (DoS)."}], "lastModified": "2026-06-17T08:00:57.827", "sourceIdentifier": "secalert@redhat.com"}