Spring Integration 5.5.0-5.5.20 FTP/SFTP/SMB arbitrary file write
CVE-2026-40987 Published on June 11, 2026

Remote-file synchronizer in Spring Integration writes server-supplied filename under localDirectory without canonicalization
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.

NVD

Vulnerability Analysis

CVE-2026-40987 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a high impact on integrity, and a small impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
LOW
User Interaction:
REQUIRED
Scope:
CHANGED
Confidentiality Impact:
LOW
Integrity Impact:
HIGH
Availability Impact:
LOW

Weakness Type

What is a Directory traversal Vulnerability?

The software 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 software 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.

CVE-2026-40987 has been classified to as a Directory traversal vulnerability or weakness.


Products Associated with CVE-2026-40987

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VMware Spring Framework
 

Affected Versions

Spring Integration: