{"cve":"CVE-2026-5327","nvd":{"published":"2026-04-02T12:16:21.260","modified":"2026-10-26T22:10:00.163","status":"Deferred","description":"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_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","score":2.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":6.3},"cwes":["CWE-74","CWE-77"],"references":["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"],"products":[],"source":"nvd","synced_at":"2026-10-26T22:26:44.656832877+00:00"},"epss":{"cve":"CVE-2026-5327","score":0.01221,"percentile":0.68504,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-5226-3rvg-hp4x","url":"https://osv.dev/vulnerability/GHSA-5226-3rvg-hp4x","summary":"fast-filesystem-mcp is vulnerable to command injection through handleGetDiskUsage function","modified":"2026-04-04T05:56:28.888620Z","packages":[{"ecosystem":"npm","name":"fast-filesystem-mcp","purl":"pkg:npm/fast-filesystem-mcp","ranges":["<=3.5.0"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}