Denial of Service Vulnerability in Spring Framework by Pivotal
CVE-2026-41851

5.3MEDIUM

Key Information:

Vendor

Spring

Status
Spring Framework
Vendor
CVE Published:
9 June 2026

What is CVE-2026-41851?

The Spring Framework may be susceptible to Denial of Service (DoS) attacks caused by unbounded cache growth triggered by user-supplied Spring Expression Language (SpEL) expressions. When applications evaluate these expressions without proper safeguards, it can lead to excessive resource consumption and potentially disrupt service availability. The issue is present in multiple versions of the Spring Framework, making it essential for developers to assess their applications and take appropriate action to mitigate this vulnerability.

Affected Version(s)

Spring Framework 7.0.0 < 7.0.7.1

Spring Framework 6.2.0 < 6.2.18.1

Spring Framework 6.1.0 < 6.1.28

References

https://spring.io/security/cve-2026-41851

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.