CVE-2026-41851 Security Details

CVE ID

CVE-2026-41851

CWE

CWE-770

CVE Description

Applications which accept user-supplied Spring Expression Language (SpEL) expressions may be vulnerable to a Denial of Service (DoS) attack if the evaluation of a SpEL expression triggers unbounded cache growth. 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.

Published

Jun 8, 2026

CVSS Score & Severity

7.5High

CVSS Vector

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

EPSS Score

0.016%

Malware

malware

KEV Status

Not in KEV Catalog: No known exploits

Vulnerable Methods

org/springframework/expression/spel/ast/OperatorMatches.getValueInternal(Lorg/springframework/expression/spel/ExpressionState;)Lorg/springframework/expression/spel/support/BooleanTypedValue;

JVM

Affected Ecosystems

affected

Source

National Vulnerability Database

References

spring.ioPROJECT