CVE-2026-5327

A security flaw has been discovered in efforthye fast-filesystem-mcp up to 3.5.1. The affected element is the function handleGetDiskUsage of the file src/index.ts. Performing a manipulation results in command injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3 6.3 MEDIUM
CVSS v2.0 6.5 MEDIUM

6.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/efforthye/fast-filesystem-mcp/
https://github.com/efforthye/fast-filesystem-mcp/issues/15
https://github.com/user-attachments/files/25822878/fast-filesystem-mcp_bug.pdf
https://vuldb.com/submit/780776
https://vuldb.com/vuln/354658
https://vuldb.com/vuln/354658/cti

Configurations

No configuration.

History

02 Apr 2026, 12:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-02 12:16

Updated : 2026-04-29 01:00

NVD link : CVE-2026-5327

Mitre link : CVE-2026-5327

CVE.ORG link : CVE-2026-5327

JSON object : View

Products Affected

No product.

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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