CVE-2024-4027
Undertow: outofmemoryerror in httpservletrequestimpl.getparameternames() can cause remote dos attacks
- State
- Published
- Severity
- 7.5 High
- Published
- Jan 30, 2026
- Updated
- Sep 1, 2026
- Reserved
- Apr 22, 2024
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat-SADP |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
Red Hat build of Apicurio Registry 2Red Hat | |
Red Hat build of QuarkusRed Hat | |
Red Hat build of QuarkusRed Hat | |
Red Hat Data Grid 8Red Hat | |
Red Hat Fuse 7Red Hat | |
Red Hat Integration Camel K 1Red Hat | |
Red Hat JBoss Enterprise Application Platform 7Red Hat | |
Red Hat JBoss Enterprise Application Platform 8Red Hat | |
Red Hat JBoss Enterprise Application Platform Expansion PackRed Hat | |
Red Hat Process Automation 7Red Hat | |
Red Hat Single Sign-On 7Red Hat |
References
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