Vulnerability · Published Apr 27, 2026 · Assigned by vmware
CVE-2026-40977
Medium 4.7
In plain English
A medium-severity security flaw in Spring Boot from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
When an application is configured to use `ApplicationPidFileWriter`, a local attacker with write access to the PID file's location can corrupt one file on the host each time the application is started. Affected: Spring Boot 4.0.0–4.0.5 (fix 4.0.6), 3.5.0–3.5.13 (fix 3.5.14), 3.4.0–3.4.15 (fix 3.4.16), 3.3.0–3.3.18 (fix 3.3.19), 2.7.0–2.7.32 (fix 2.7.33); PID file / symlink behavior (`ApplicationPidFileWriter`). Versions that are no longer supported are also affected per vendor advisory.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.springframework.boot:spring-boot-cassandra | 4.0.6 | GHSA-5368-6h4h-gr29 |
| Maven | org.springframework.boot:spring-boot-cassandra | 3.5.14 | GHSA-5368-6h4h-gr29 |
| Maven | org.springframework.boot:spring-boot-cassandra | no fix listed | GHSA-5368-6h4h-gr29 |
| Maven | org.springframework.boot:spring-boot-cassandra | no fix listed | GHSA-5368-6h4h-gr29 |
| Maven | org.springframework.boot:spring-boot-cassandra | no fix listed | GHSA-5368-6h4h-gr29 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Spring | Spring Boot | 4.0.0 – before 4.0.63.5.0 – before 3.5.143.4.0 – before 3.4.163.3.0 – before 3.3.192.7.0 – before 2.7.33 |
Weakness: CWE-59 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H