High severity · published Dec 3, 2025
CVE-2024-3884
Undertow: outofmemory when parsing form data encoding with application/x-www-form-urlencoded
7.5
CVSS
1.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OS
OpenShift Serverless · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Build of Keycloak · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Data Grid 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Fuse 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Integration Camel K 1 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Integration Camel Quarkus 2 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat JBoss Data Grid 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat JBoss Enterprise Application Platform 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-3884
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-3884
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:0383
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:0384
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:0386
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3889
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3891
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:3892
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