CVE-2024-4027
HIGHundertow-core < 2.3.21.Final - Unauthenticated Denial of Service via Large Parameter Names
Title source: llmDescription
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.
References (2)
Core 2
Core References
Vendor Advisory vdb-entry
x_refsource_redhat
https://access.redhat.com/security/cve/CVE-2024-4027
Issue Tracking issue-tracking
x_refsource_redhat
https://bugzilla.redhat.com/show_bug.cgi?id=2276410
Scores
CVSS v3
7.5
EPSS
0.0030
EPSS Percentile
53.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-20
Status
published
Products (21)
io.undertow/undertow-core
0 - 2.3.21.FinalMaven
Red Hat/OpenShift Serverless
Red Hat/Red Hat build of Apache Camel - HawtIO 4
Red Hat/Red Hat build of Apache Camel 4 for Quarkus 3
Red Hat/Red Hat build of Apache Camel for Spring Boot 3
Red Hat/Red Hat build of Apache Camel for Spring Boot 4
Red Hat/Red Hat build of Apicurio Registry 2
Red Hat/Red Hat Build of Keycloak
Red Hat/Red Hat build of OptaPlanner 8
Red Hat/Red Hat build of Quarkus
... and 11 more
Published
Jan 30, 2026
Tracked Since
Feb 18, 2026