CVE-2026-5327
medium
CVSS v3
6.3
CVSS v4 NEW
2.1
VIR risk
6.3
Description
fast-filesystem-mcp is vulnerable to command injection through handleGetDiskUsage function
Predictions
Exploit likelihood
73%
Patch ETA
โ
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ if you've already worked around this in production โ publish your fix to the community-verified tier.
โ Propose a mitigation on Community โ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| npm | fast-filesystem-mcp | <=3.5.0 | |
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
- https://vuldb.com/vuln/354658/cti
- https://nvd.nist.gov/vuln/detail/CVE-2026-5327
- https://github.com/efforthye/fast-filesystem-mcp
CWEs
CWE-74 CWE-77
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.