SecuriTricks - CVE-2026-3260

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).

Product(s) Impacted

Vendor	Product	Versions
Redhat	Undertow	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-770

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	redhat	undertow	/	/	/	/	/	/	/	/

References

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

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

CVSS Score

5.9 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: HIGH
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: HIGH

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

View Vector String

Timeline

Published: March 24, 2026, 5:16 a.m.
Last Modified: March 24, 2026, 3:53 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-3260