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).
Problem types
Allocation of Resources Without Limits or Throttling
Product status
Timeline
| 2026-02-26: | Reported to Red Hat. |
| 2026-03-24: | Made public. |
References
access.redhat.com/security/cve/CVE-2026-3260
bugzilla.redhat.com/show_bug.cgi?id=2443010 (RHBZ#2443010)