CVE-2026-3260

MEDIUM

Undertow: undertow: denial of service due to premature multipart/form-data parsing in get requests

Title source: cna
STIX 2.1

Description

A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending an HTTP GET request containing multipart/form-data content. If the underlying application processes parameters using methods like `getParameterMap()`, the server prematurely parses and stores this content to disk. This could lead to resource exhaustion, potentially resulting in a Denial of Service (DoS).

References (2)

Scores

CVSS v3 5.9
EPSS 0.0064
EPSS Percentile 70.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-770
Status published
Products (26)
io.undertow/undertow-core 0 - 2.4.0.Beta1Maven
Red Hat/Red Hat build of Apache Camel - HawtIO 4
Red Hat/Red Hat build of Apache Camel for Spring Boot 4
Red Hat/Red Hat Data Grid 8
Red Hat/Red Hat Enterprise Linux 10
Red Hat/Red Hat Enterprise Linux 8
Red Hat/Red Hat Enterprise Linux 9
Red Hat/Red Hat Fuse 7
Red Hat/Red Hat JBoss Enterprise Application Platform 7
Red Hat/Red Hat JBoss Enterprise Application Platform 8
... and 16 more
Published Mar 24, 2026
Tracked Since Mar 24, 2026