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CVE-2026-40977

Quick assessment

Affected
Spring Spring Boot
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

VMware Spring Boot是美国威睿（VMware）公司的一套开源框架。 VMware Spring Boot 4.0.0至4.0.5版本、3.5.0至3.5.13版本、3.4.0至3.4.15版本、3.3.0至3.3.18版本和2.7.0至2.7.32版本存在后置链接漏洞，该漏洞源于PID文件和符号链接行为问题，可能导致本地攻击者在每次应用程序启动时损坏主机上的一个文件。

CVSS 4.7 · Medium EPSS 0.11% · P1

Possible ATT&CK Techniques 1 AI

T1074 · Data Staged
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I. Basic Information for CVE-2026-40977

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
VMware Spring Boot 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
VMware Spring Boot是美国威睿（VMware）公司的一套开源框架。 VMware Spring Boot 4.0.0至4.0.5版本、3.5.0至3.5.13版本、3.4.0至3.4.15版本、3.3.0至3.3.18版本和2.7.0至2.7.32版本存在后置链接漏洞，该漏洞源于PID文件和符号链接行为问题，可能导致本地攻击者在每次应用程序启动时损坏主机上的一个文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Spring Spring Boot 4.0.0 ~ 4.0.6 -

II. Public POCs for CVE-2026-40977

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III. Intelligence Information for CVE-2026-40977

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Vendor Advisories for CVE-2026-40977 (1)

Same Patch Batch · Spring · 2026-04-27 · 8 CVEs total

CVE-2026-40976 9.1 CRITICAL VMware Spring Boot 安全漏洞
CVE-2026-40972 7.5 HIGH VMware Spring Boot 安全漏洞
CVE-2026-40973 7.0 HIGH VMware Spring Boot 安全漏洞
CVE-2026-40970 5.0 MEDIUM VMware Spring Boot 信任管理问题漏洞
CVE-2026-40971 5.0 MEDIUM VMware Spring Boot 信任管理问题漏洞
CVE-2026-40974 5.0 MEDIUM VMware Spring Boot 信任管理问题漏洞
CVE-2026-40975 4.8 MEDIUM VMware Spring Boot 安全特征问题漏洞

IV. Related Vulnerabilities

Same product: Spring Boot
Same vendor: Spring
Same weakness: CWE-59