SARA / Free Tools / CVE / CVE-2024-3884

CVE-2024-3884 — A flaw was found in Undertow that can cause remote denial of service attacks

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 issu

CVSS
7.5 HIGH
EPSS
79.00% (top 26.30%)
CWE
CWE-20
Published
2025-12-03T18:40:25.606Z
Last modified
2026-03-18T16:08:08.408Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

01What is this vulnerability?

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.

02Affected products

VendorProductVersions
Red HatRed Hat JBoss Enterprise Application Platform 7.4unspecified
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:2.2.39-1.Final_redhat_00001.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 70:7.4.24-4.GA_redhat_00002.1.el7eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 80:2.2.39-1.Final_redhat_00001.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 80:7.4.24-4.GA_redhat_00002.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 90:2.2.39-1.Final_redhat_00001.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 90:7.4.24-4.GA_redhat_00002.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0unspecified
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 80:1.83.0-1.redhat_00001.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 80:33.0.0-2.jre_redhat_00003.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 80:4.0.6-1.redhat_00001.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 80:1.0.0-3.redhat_00009.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 80:2.0.2-1.Final_redhat_00001.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 80:2.3.23-1.SP3_redhat_00001.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 90:1.83.0-1.redhat_00001.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 90:33.0.0-2.jre_redhat_00003.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 90:4.0.6-1.redhat_00001.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 90:1.0.0-3.redhat_00009.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 90:2.0.2-1.Final_redhat_00001.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.0 for RHEL 90:2.3.23-1.SP3_redhat_00001.1.el9eap
Red HatRed Hat JBoss Enterprise Application Platform 8.1unspecified
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 80:2.3.20-2.SP4_redhat_00001.1.el8eap
Red HatRed Hat JBoss Enterprise Application Platform 8.1 for RHEL 90:2.3.20-2.SP4_redhat_00001.1.el9eap
Red HatOpenShift Serverlessunspecified
Red HatRed Hat build of Apache Camel 4 for Quarkus 3unspecified
Red HatRed Hat build of Apache Camel for Spring Boot 3unspecified
Red HatRed Hat build of Apache Camel for Spring Boot 4unspecified
Red HatRed Hat build of Apache CamelHawtIO 4 — unspecified
Red HatRed Hat build of Apicurio Registry 2unspecified
Red HatRed Hat Build of Keycloakunspecified
Red HatRed Hat build of OptaPlanner 8unspecified
Red HatRed Hat build of Quarkusunspecified
Red HatRed Hat build of Quarkusunspecified
Red HatRed Hat Data Grid 8unspecified
Red HatRed Hat Fuse 7unspecified
Red HatRed Hat Integration Camel K 1unspecified
Red HatRed Hat Integration Camel Quarkus 2unspecified
Red HatRed Hat JBoss Data Grid 7unspecified
Red HatRed Hat JBoss Enterprise Application Platform Expansion Packunspecified
Red HatRed Hat JBoss Fuse Service Works 6unspecified
Red HatRed Hat Process Automation 7unspecified
Red HatRed Hat Single SignOn 7 — unspecified
Red Hatstreams for Apache Kafkaunspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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