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CVE-2026-5327 is a command injection vulnerability in the efforthye fast-filesystem-mcp product, specifically in the handleGetDiskUsage function of src/index.ts. This flaw affects versions up to 3.5.1 and can be exploited remotely without user interaction or elevated privileges. The vulnerability has a medium severity with a CVSS 4.0 base score of 5.3. Although the issue was reported early to the project, no response or patch has been provided yet. Public exploit code is available, increasing the risk of exploitation. Join the discussion | CVE Database V5 | 04/02/2026, 11:45:11 UTC Added: 04/02/2026, 12:08:31 UTC |
0 fast-filesystem-mcp version 3.4.0 contains a critical path traversal vulnerability in its file operation tools including fast_read_file. This vulnerability arises from improper path validation that fails to resolve symbolic links to their actual physical paths. The safePath and isPathAllowed functions use path.resolve() which does not handle symlinks, allowing attackers to bypass directory access restrictions by creating symlinks within allowed directories that point to restricted system paths. When these symlinks are accessed through valid path references, the validation checks are circumvented, enabling access to unauthorized files. Join the discussion | CVE Database V5 | 01/07/2026, 00:00:00 UTC Added: 01/07/2026, 16:57:28 UTC |
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