CVE-2024-3884Undertow: outofmemory when parsing form data encoding with application/x-www-form-urlencoded

Description

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.

Timeline

Scores

EPSS (exploitation in 30 days)

1.5% · top 26% of all CVEs (13 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: yes · Technical impact: partial

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Affected products

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7

  • unaffected 0:1.4.18-19.SP17_redhat_00001.1.ep7.el7 – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7

  • unaffected 0:7.1.14-4.GA_redhat_00003.1.ep7.el7 – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7

  • unaffected 0:2.0.41-7.SP8_redhat_00001.1.el7eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7

  • unaffected 0:7.3.17-5.GA_redhat_00006.1.el7eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.4.24

  • unaffected 2.2.39.Final-redhat-00001 – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

  • unaffected 0:2.2.39-1.Final_redhat_00001.1.el7eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

  • unaffected 0:7.4.24-4.GA_redhat_00002.1.el7eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8

  • unaffected 0:2.2.39-1.Final_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8

  • unaffected 0:7.4.24-4.GA_redhat_00002.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9

  • unaffected 0:2.2.39-1.Final_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9

  • unaffected 0:7.4.24-4.GA_redhat_00002.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0

  All versions: unaffected

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8

  • unaffected 0:1.83.0-1.redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8

  • unaffected 0:33.0.0-2.jre_redhat_00003.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8

  • unaffected 0:4.0.6-1.redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8

  • unaffected 0:1.0.0-3.redhat_00009.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8

  • unaffected 0:2.0.2-1.Final_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8

  • unaffected 0:2.3.23-1.SP3_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9

  • unaffected 0:1.83.0-1.redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9

  • unaffected 0:33.0.0-2.jre_redhat_00003.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9

  • unaffected 0:4.0.6-1.redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9

  • unaffected 0:1.0.0-3.redhat_00009.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9

  • unaffected 0:2.0.2-1.Final_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9

  • unaffected 0:2.3.23-1.SP3_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1.3

  • unaffected 2.3.20.SP4-redhat-00001 – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:4.0.10-1.redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:1.82.0-1.redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:801.3.0-1.GA_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:1.0.1-3.redhat_00003.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:6.6.36-1.Final_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:4.0.2-1.Final_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:2.5.0-1.redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:2.3.20-2.SP4_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:8.1.3-4.GA_redhat_00006.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:5.0.12-1.Final_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:2.6.6-1.Final_redhat_00001.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8

  • unaffected 0:8.1.1-4.GA_redhat_00007.1.el8eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:4.0.10-1.redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:1.82.0-1.redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:801.3.0-1.GA_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:1.0.1-3.redhat_00003.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:6.6.36-1.Final_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:4.0.2-1.Final_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:2.5.0-1.redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:2.3.20-2.SP4_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:8.1.3-4.GA_redhat_00006.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:5.0.12-1.Final_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:2.6.6-1.Final_redhat_00001.1.el9eap – < *

• Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9

  • unaffected 0:8.1.1-4.GA_redhat_00007.1.el9eap – < *

• Red Hat · OpenShift Serverless

  All versions: unknown

• Red Hat · Red Hat build of Apache Camel 4 for Quarkus 3

  All versions: unknown

• Red Hat · Red Hat build of Apache Camel for Spring Boot 3

  All versions: unknown

• Red Hat · Red Hat build of Apache Camel for Spring Boot 4

  All versions: unknown

• Red Hat · Red Hat build of Apache Camel - HawtIO 4

  All versions: unknown

• Red Hat · Red Hat build of Apicurio Registry 2

  All versions: unknown

• Red Hat · Red Hat Build of Keycloak

  All versions: unknown

• Red Hat · Red Hat build of OptaPlanner 8

  All versions: unknown

• Red Hat · Red Hat build of Quarkus

  All versions: unknown

• Red Hat · Red Hat build of Quarkus

  All versions: unknown

• Red Hat · Red Hat Data Grid 8

  All versions: unknown

• Red Hat · Red Hat Fuse 7

  All versions: unknown

• Red Hat · Red Hat Integration Camel K 1

  All versions: unknown

• Red Hat · Red Hat Integration Camel Quarkus 2

  All versions: unknown

• Red Hat · Red Hat JBoss Data Grid 7

  All versions: unknown

• Red Hat · Red Hat JBoss Enterprise Application Platform 7

  All versions: affected

• Red Hat · Red Hat JBoss Enterprise Application Platform Expansion Pack

  All versions: unaffected

• Red Hat · Red Hat JBoss Fuse Service Works 6

  All versions: unknown

• Red Hat · Red Hat Process Automation 7

  All versions: unknown

• Red Hat · Red Hat Single Sign-On 7

  All versions: unknown

• Red Hat · streams for Apache Kafka

  All versions: unknown

Affected packages

From reviewed advisories of the GitHub Advisory Database.

• Mavenio.undertow:undertow-coreGHSA-6h4f-pj3g-q8fq (opens in a new tab)

What to do

Workaround: 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.

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2024-32452 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisory GHSA-6h4f-pj3g-q8fq (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2024-3884](https://cveledger.app/badge/CVE-2024-3884.svg)](https://cveledger.app/cve/CVE-2024-3884)

Record last updated 5 Nov 2026, 12:26 UTC.