CVE-2024-4027 Undertow: outofmemoryerror in httpservletrequestimpl.getparameternames() can cause remote dos attacks
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.
Problem types: cwe_id: CWE-20
description: Improper Input Validation
Affected products: vendor: Red Hat
product: OpenShift Serverless
cpes: cpe:/a:redhat:serverless:1
default_status: unknown
vendor: Red Hat
product: Red Hat build of Apache Camel 4 for Quarkus 3
cpes: cpe:/a:redhat:camel_quarkus:3
default_status: unknown
vendor: Red Hat
product: Red Hat build of Apache Camel for Spring Boot 3
cpes: cpe:/a:redhat:camel_spring_boot:3
default_status: unknown
vendor: Red Hat
product: Red Hat build of Apache Camel for Spring Boot 4
cpes: cpe:/a:redhat:camel_spring_boot:4
default_status: unknown
vendor: Red Hat
product: Red Hat build of Apache Camel - HawtIO 4
cpes: cpe:/a:redhat:apache_camel_hawtio:4
default_status: unknown
vendor: Red Hat
product: Red Hat build of Apicurio Registry 2
cpes: cpe:/a:redhat:service_registry:2
default_status: affected
vendor: Red Hat
product: Red Hat Build of Keycloak
cpes: cpe:/a:redhat:build_keycloak:
default_status: unknown
vendor: Red Hat
product: Red Hat build of OptaPlanner 8
cpes: cpe:/a:redhat:optaplanner:::el6
default_status: unknown
vendor: Red Hat
product: Red Hat build of Quarkus
cpes: cpe:/a:redhat:quarkus:2
default_status: unknown
vendor: Red Hat
product: Red Hat build of Quarkus
cpes: cpe:/a:redhat:quarkus:3
default_status: unaffected
vendor: Red Hat
product: Red Hat Data Grid 8
cpes: cpe:/a:redhat:jboss_data_grid:8
default_status: unaffected
vendor: Red Hat
product: Red Hat Fuse 7
cpes: cpe:/a:redhat:jboss_fuse:7
default_status: affected
vendor: Red Hat
product: Red Hat Integration Camel K 1
cpes: cpe:/a:redhat:integration:1
default_status: affected
vendor: Red Hat
product: Red Hat JBoss Data Grid 7
cpes: cpe:/a:redhat:jboss_data_grid:7
default_status: unknown
vendor: Red Hat
product: Red Hat JBoss Enterprise Application Platform 7
cpes: cpe:/a:redhat:jboss_enterprise_application_platform:7
default_status: unaffected
vendor: Red Hat
product: Red Hat JBoss Enterprise Application Platform 8
cpes: cpe:/a:redhat:jboss_enterprise_application_platform:8
default_status: unaffected
vendor: Red Hat
product: Red Hat JBoss Enterprise Application Platform Expansion Pack
cpes: cpe:/a:redhat:jbosseapxp
default_status: unaffected
vendor: Red Hat
product: Red Hat JBoss Fuse Service Works 6
cpes: cpe:/a:redhat:jboss_fuse_service_works:6
default_status: unknown
vendor: Red Hat
product: Red Hat Process Automation 7
cpes: cpe:/a:redhat:jboss_enterprise_bpms_platform:7
default_status: affected
vendor: Red Hat
product: Red Hat Single Sign-On 7
cpes: cpe:/a:redhat:red_hat_single_sign_on:7
default_status: unaffected
vendor: Red Hat
product: streams for Apache Kafka
cpes: cpe:/a:redhat:amq_streams:1
default_status: unknown
CVSS v3.1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
Published: 2026-01-30T14:25:54.405Z