CVE-2026-41840CWE-401

Spring WebFlux applications are vulnerable to Denial of Service (DoS) attacks when processing multipart requests

Medium · published June 9, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
29.3
In the wild
Unconfirmed
What it is

Spring WebFlux applications are vulnerable to Denial of Service (DoS) attacks when processing multipart requests.

Affected versions: Spring Framework 7.0.0 through 7.0.7, 6.2.0 through 6.2.18, 6.1.0 through 6.1.27, 5.3.0 through 5.3.48.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00367 · 29.3th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2026-06-09T03:50Z
EPSS history
Timeline
  • 09 JUN 03:50Z
    Spring WebFlux applications are vulnerable to Denial of Service (DoS) attacks when processing multipart requests
    cvelistv5