Local File Corruption Risk in Spring Boot Versions from Pivotal
CVE-2026-40977

4.7MEDIUM

Key Information:

Vendor

Spring

Status
Spring Boot
Vendor
CVE Published:
27 April 2026

What is CVE-2026-40977?

A vulnerability exists in Spring Boot that allows a local attacker with write access to the location of the PID file to corrupt a specific file every time the application is started. This issue arises when the ApplicationPidFileWriter is configured improperly. All affected versions must be updated to the latest fixes to mitigate potential risks.

Affected Version(s)

Spring Boot 4.0.0 < 4.0.6

Spring Boot 3.5.0 < 3.5.14

Spring Boot 3.4.0 < 3.4.16

References

https://spring.io/security/cve-2026-40977

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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