Vmware Spring Boot up to 4.0.5 PID File ApplicationPidFileWriter link following

CVSS Meta Temp Score
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CTI Interest Score
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3.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Vmware Spring Boot up to 2.7.32/3.3.18/3.4.15/3.5.13/4.0.5. It has been rated as critical. The impacted element is the function ApplicationPidFileWriter of the component PID File Handler. This manipulation causes link following. This vulnerability is registered as CVE-2026-40977. The attack needs to be launched locally. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Vmware Spring Boot up to 2.7.32/3.3.18/3.4.15/3.5.13/4.0.5 and classified as problematic. Affected by this vulnerability is the function ApplicationPidFileWriter of the component PID File Handler. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect integrity, and availability. The summary by CVE is:

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.

The advisory is shared at spring.io. This vulnerability is known as CVE-2026-40977 since 04/16/2026. The exploitation appears to be difficult. An attack has to be approached locally. The exploitation requires an enhanced level of successful authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 311001 (Linux Distros Unpatched Vulnerability : CVE-2026-40977), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.7.33, 3.3.19, 3.4.16, 3.5.14 or 4.0.6 eliminates this vulnerability.

The vulnerability is also documented in the databases at CNNVD (CNNVD-202604-5558), Tenable (311001) and CERT Bund (WID-SEC-2026-1263). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Red Hat Enterprise Linux
  • VMware Tanzu Spring Boot
  • HCL Commerce
  • Red Hat OpenShift

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.8
VulDB Meta Temp Score: 3.8

VulDB Base Score: 3.0
VulDB Temp Score: 2.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.7
CNA Vector (vmware): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 311001
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-40977

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Spring Boot 2.7.33/3.3.19/3.4.16/3.5.14/4.0.6

Timelineinfo

04/16/2026 CVE reserved
04/28/2026 +12 days Advisory disclosed
04/28/2026 +0 days VulDB entry created
06/04/2026 +37 days VulDB entry last update

Sourcesinfo

Vendor: vmware.com

Advisory: spring.io
Status: Confirmed

CVE: CVE-2026-40977 (🔒)
GCVE (CVE): GCVE-0-2026-40977
GCVE (VulDB): GCVE-100-359905
CERT Bund: WID-SEC-2026-1263 - VMware Tanzu Spring Boot: Mehrere Schwachstellen
CNNVD: CNNVD-202604-5558 - VMware Spring Boot 后置链接漏洞

scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 04/28/2026 06:43
Updated: 06/04/2026 15:43
Changes: 04/28/2026 06:43 (65), 04/30/2026 01:18 (6), 04/30/2026 13:04 (2), 06/04/2026 15:43 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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