GHSA-5226-3rvg-hp4x
fast-filesystem-mcp is vulnerable to command injection through handleGetDiskUsage function
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | fast-filesystem-mcp | <= 3.5.0 | no fix listed |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2026-5327
- https://github.com/efforthye/fast-filesystem-mcp/issues/15
- https://github.com/efforthye/fast-filesystem-mcp
- 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