Denial-of-Service Vulnerability in Undertow by Red Hat
CVE-2024-4027

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Openshift Serverless
Red Hat Build Of Apache Camel 4 For Quarkus 3
Red Hat Build Of Apache Camel For Spring Boot 3
Red Hat Build Of Apache Camel For Spring Boot 4
Vendor
CVE Published:
30 January 2026

What is CVE-2024-4027?

An identified flaw in Undertow allows servlets that utilize the HttpServletRequestImpl.getParameterNames() method to experience an OutOfMemoryError when processing large parameter names sent by clients. This vulnerability enables unauthorized users to initiate a remote denial-of-service (DoS) attack, potentially disrupting service availability.

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References

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

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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