CVE-2026-3260

moderate-risk

Published 2026-03-24

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).

Do I need to act?

0.57% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.9/10 Medium

NETWORK / HIGH complexity

Affected Products (13)

Build Of Apache Camel - Hawtio

Build Of Apache Camel For Spring Boot

Data Grid

Fuse

Jboss Enterprise Application Platform

Jboss Enterprise Application Platform Expansion Pack

Process Automation

Single Sign-On

Undertow

Enterprise Linux

Affected Vendors

Redhat

References (2)

Vendor Advisory https://access.redhat.com/security/cve/CVE-2026-3260

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2443010

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moderate-risk

Severity 18/34 · Moderate

Exploitability 2/34 · Minimal

Exposure 17/34 · Moderate