Advisory severityHigh7.5Vendor: MediumRed Hat Linux

High [CVE-2024-3884] outofmemory when parsing form data encoding with application/x-www-form-urlencoded

This high-severity Red Hat Linux advisory covers CVE-2024-3884 affecting Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7, Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7, Red Hat JBoss Enterprise Application Platform 7.4.24.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2024-3884 Source published Dec 3, 2025Source updated Dec 3, 2025

VulniPulse record published Jul 24, 2026

CVE-2024-3884

Affected products & platforms

Red Hat LinuxUnclassified

Open source advisory

Summary

A flaw was found in Undertow that can cause remote denial of service attacks. When the server uses the FormEncodedDataDefinition.doParse(StreamSourceChannel) method to parse large form data encoding with application/x-www-form-urlencoded, the method will cause an OutOfMemory issue.

This flaw allows unauthorized users to cause a remote denial of service (DoS) attack. Red Hat rates this as a Moderate impact since this requires the use of a specific form method by the server that must be externally available and the input is not sanitized by the given servlet or class implementing its use.

Weakness: CWE-20.

Affected products named by the advisory: Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7; Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7; Red Hat JBoss Enterprise Application Platform 7.4.24; Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7; and 11 more.

Is CVE-2024-3884 exploited?

No exploitation is reported in the sources VulniPulse tracks: CVE-2024-3884 is not in the CISA KEV catalog (checked Nov 10, 2026) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.

How do I fix CVE-2024-3884?

Upgrade to a fixed release named by Red Hat:

eap7-undertow-0:1.4.18-19.SP17_redhat_00001.1.ep7.el7
eap7-wildfly-0:7.1.14-4.GA_redhat_00003.1.ep7.el7
eap7-undertow-0:2.0.41-7.SP8_redhat_00001.1.el7eap
eap7-wildfly-0:7.3.17-5.GA_redhat_00006.1.el7eap
io.undertow/undertow-core:2.2.39.Final-redhat-00001
eap7-undertow-0:2.2.39-1.Final_redhat_00001.1.el7eap
eap7-wildfly-0:7.4.24-4.GA_redhat_00002.1.el7eap
eap7-undertow-0:2.2.39-1.Final_redhat_00001.1.el8eap
eap7-wildfly-0:7.4.24-4.GA_redhat_00002.1.el8eap
eap7-undertow-0:2.2.39-1.Final_redhat_00001.1.el9eap
eap7-wildfly-0:7.4.24-4.GA_redhat_00002.1.el9eap
undertow

38 more fixed releases are listed below.

Confirm against the vendor advisory before you patch.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.

Official advisory · high-confidence parse· fetched 15 days ago·verify at source

Fixed versions

eap7-undertow-0:1.4.18-19.SP17_redhat_00001.1.ep7.el7
eap7-wildfly-0:7.1.14-4.GA_redhat_00003.1.ep7.el7
eap7-undertow-0:2.0.41-7.SP8_redhat_00001.1.el7eap
eap7-wildfly-0:7.3.17-5.GA_redhat_00006.1.el7eap
io.undertow/undertow-core:2.2.39.Final-redhat-00001
eap7-undertow-0:2.2.39-1.Final_redhat_00001.1.el7eap
eap7-wildfly-0:7.4.24-4.GA_redhat_00002.1.el7eap
eap7-undertow-0:2.2.39-1.Final_redhat_00001.1.el8eap
eap7-wildfly-0:7.4.24-4.GA_redhat_00002.1.el8eap
eap7-undertow-0:2.2.39-1.Final_redhat_00001.1.el9eap
eap7-wildfly-0:7.4.24-4.GA_redhat_00002.1.el9eap
undertow
eap8-bouncycastle-0:1.83.0-1.redhat_00001.1.el8eap
eap8-guava-libraries-0:33.0.0-2.jre_redhat_00003.1.el8eap
eap8-jaxb-0:4.0.6-1.redhat_00001.1.el8eap
eap8-jcip-annotations-0:1.0.0-3.redhat_00009.1.el8eap
eap8-slf4j-jboss-logmanager-0:2.0.2-1.Final_redhat_00001.1.el8eap
eap8-undertow-0:2.3.23-1.SP3_redhat_00001.1.el8eap
eap8-bouncycastle-0:1.83.0-1.redhat_00001.1.el9eap
eap8-guava-libraries-0:33.0.0-2.jre_redhat_00003.1.el9eap
eap8-jaxb-0:4.0.6-1.redhat_00001.1.el9eap
eap8-jcip-annotations-0:1.0.0-3.redhat_00009.1.el9eap
eap8-slf4j-jboss-logmanager-0:2.0.2-1.Final_redhat_00001.1.el9eap
eap8-undertow-0:2.3.23-1.SP3_redhat_00001.1.el9eap
io.undertow/undertow-core:2.3.20.SP4-redhat-00001
eap8-apache-cxf-0:4.0.10-1.redhat_00001.1.el8eap
eap8-bouncycastle-0:1.82.0-1.redhat_00001.1.el8eap
eap8-eap-product-conf-parent-0:801.3.0-1.GA_redhat_00001.1.el8eap
eap8-eventstream-0:1.0.1-3.redhat_00003.1.el8eap
eap8-hibernate-0:6.6.36-1.Final_redhat_00001.1.el8eap
eap8-jboss-el-api_5.0_spec-0:4.0.2-1.Final_redhat_00001.1.el8eap
eap8-jboss-threads-0:2.5.0-1.redhat_00001.1.el8eap
eap8-undertow-0:2.3.20-2.SP4_redhat_00001.1.el8eap
eap8-wildfly-0:8.1.3-4.GA_redhat_00006.1.el8eap
eap8-wildfly-clustering-0:5.0.12-1.Final_redhat_00001.1.el8eap
eap8-wildfly-elytron-0:2.6.6-1.Final_redhat_00001.1.el8eap
eap8-wildfly-javadocs-0:8.1.1-4.GA_redhat_00007.1.el8eap
eap8-apache-cxf-0:4.0.10-1.redhat_00001.1.el9eap
eap8-bouncycastle-0:1.82.0-1.redhat_00001.1.el9eap
eap8-eap-product-conf-parent-0:801.3.0-1.GA_redhat_00001.1.el9eap
RHSA-2026:6012
RHSA-2026:6011
RHSA-2026:4924
RHSA-2026:4915
RHSA-2026:4916
RHSA-2026:4917
RHSA-2026:3892
RHSA-2026:3889
RHSA-2026:3891
RHSA-2026:0386

Official advisory · high-confidence parse· fetched 15 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

It is possible to mitigate the vulnerability by performing an upper-level verification to ensure the content size sent server side is within the allowed parameters.

Official advisory · high-confidence parse· fetched 15 days ago·verify at source

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Sources

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Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
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CVE-2024-3884NVD CVE.org MITRE

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High [CVE-2024-3884] outofmemory when parsing form data encoding with application/x-www-form-urlencoded

Summary

Is CVE-2024-3884 exploited?

How do I fix CVE-2024-3884?

Affected versions

Mitigation checklist

Get an email when Red Hat publishes the next one.

More Red Hat Linux advisories

Monitor future Red Hat Linux CVEs from your phone.

Discussion(0)