CVE-2026-3260 PUBLISHED

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

Assigner: redhat
Reserved: 26.02.2026 Published: 24.03.2026 Updated: 24.03.2026

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).

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 5.9

Product Status

Vendor Red Hat
Product Red Hat build of Apache Camel for Spring Boot 4
Versions Default: affected
Vendor Red Hat
Product Red Hat build of Apache Camel - HawtIO 4
Versions Default: affected
Vendor Red Hat
Product Red Hat Data Grid 8
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 10
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 8
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Versions Default: affected
Vendor Red Hat
Product Red Hat Fuse 7
Versions Default: affected
Vendor Red Hat
Product Red Hat JBoss Enterprise Application Platform 7
Versions Default: affected
Vendor Red Hat
Product Red Hat JBoss Enterprise Application Platform 8
Versions Default: affected
Vendor Red Hat
Product Red Hat JBoss Enterprise Application Platform 8
Versions Default: affected
Vendor Red Hat
Product Red Hat JBoss Enterprise Application Platform 8
Versions Default: affected
Vendor Red Hat
Product Red Hat JBoss Enterprise Application Platform Expansion Pack
Versions Default: affected
Vendor Red Hat
Product Red Hat JBoss Enterprise Application Platform Expansion Pack
Versions Default: affected
Vendor Red Hat
Product Red Hat JBoss Enterprise Application Platform Expansion Pack
Versions Default: affected
Vendor Red Hat
Product Red Hat Process Automation 7
Versions Default: affected
Vendor Red Hat
Product Red Hat Single Sign-On 7
Versions Default: affected

Workarounds

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

References

Problem Types

  • Allocation of Resources Without Limits or Throttling CWE