CVE-2026-41849 HIGH

CVE-2026-41849: Spring Framework Denial of Service via Integer Overflow in SpEL Expressions

Vendor Spring
Product Spring Framework
Weakness CWE-190
Published June 9, 2026
Last update June 9, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

An integer overflow vulnerability exists in the evaluation logic of the Spring Expression Language (SpEL). An attacker can exploit this by supplying a specially crafted SpEL expression that triggers excessive resource consumption, resulting in a Denial of Service (DoS). Affected versions: Spring Framework 5.3.0 through 5.3.48.

Key dates

02Disclosure timeline

June 9, 2026 CVE published
June 9, 2026 Record updated