CVE-2026-40987

Analyzed Analyzed - Analysis Complete

Path Traversal in Spring Integration

Publication date: 2026-06-11

Last updated on: 2026-09-04

Assigner: VMware

Description

A malicious or compromised FTP/SFTP/SMB server can write arbitrary files anywhere on the client filesystem (outside the configured local-directory) with attacker-controlled content. Affected versions: Spring Integration 7.0.0 through 7.0.4; 6.5.0 through 6.5.8; 6.4.0 through 6.4.11; 6.3.0 through 6.3.14; 5.5.0 through 5.5.20.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-11

Last Modified

2026-09-04

Generated

2026-09-20

AI Q&A

2026-06-11

EPSS Evaluated

2026-09-15

NVD

CVE-2026-40987

EUVD

EUVD-2026-36202

Affected Vendors & Products

Vendor	Product	Version / Range
vmware	spring_integration	to 5.5.21 (exc)
vmware	spring_integration	From 6.3.0 (inc) to 6.3.15 (exc)
vmware	spring_integration	From 6.4.0 (inc) to 6.4.12 (exc)
vmware	spring_integration	From 6.5.0 (inc) to 6.5.8.1 (exc)
vmware	spring_integration	From 7.0.0 (inc) to 7.0.4.1 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

CVE-2026-40987 is a vulnerability in Spring Integration's remote-file synchronizer that allows a malicious or compromised FTP, SFTP, or SMB server to write arbitrary files anywhere on the client's filesystem, outside the configured local directory.

This happens because the synchronizer writes server-supplied filenames without proper canonicalization, enabling an attacker to control the file paths and content written on the client system.

The affected versions include Spring Integration 7.0.0 through 7.0.4, 6.5.0 through 6.5.8, 6.4.0 through 6.4.11, 6.3.0 through 6.3.14, and 5.5.0 through 5.5.20.

Impact Analysis

This vulnerability can allow an attacker controlling a remote FTP/SFTP/SMB server to write arbitrary files anywhere on the client filesystem.

Such unauthorized file writes can lead to potential compromise of the client system, including overwriting critical files, injecting malicious code, or disrupting normal operations.

Because the attacker controls the content and location of the files, this can result in integrity and availability impacts on the affected system.

Mitigation Strategies

The primary immediate step to mitigate this vulnerability is to upgrade Spring Integration to one of the fixed versions.

Upgrade to version 5.5.21 (Enterprise Support Only)
Upgrade to version 6.3.15 (Enterprise Support Only)
Upgrade to version 6.4.12 (Enterprise Support Only)
Upgrade to version 6.5.8.1 (Enterprise Support Only) or 6.5.9 (OSS)
Upgrade to version 7.0.4.1 (Enterprise Support Only) or 7.0.5 (OSS)

No additional mitigation steps are required after upgrading.

Hi! I’m here to help you understand CVE-2026-40987. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70