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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.

PUBLISHED Reserved 2024-04-22 | Published 2026-01-30 | Updated 2026-01-30 | Assigner redhat




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Improper Input Validation

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Timeline

2024-04-22:Reported to Red Hat.
2026-01-30:Made public.

References

access.redhat.com/security/cve/CVE-2024-4027 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2276410 (RHBZ#2276410) issue-tracking

cve.org (CVE-2024-4027)

nvd.nist.gov (CVE-2024-4027)

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