CVE-2026-940460215AndrewFeng ACE-MCP MCP Tool getFileSnippet.ts get_file_snippet path traversal
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No exploitation reported and no EPSS estimate yet.
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A weakness has been identified in 0215AndrewFeng ACE-MCP up to 4.10.8. The affected element is the function get_file_snippet of the file getFileSnippet.ts of the component MCP Tool. Executing a manipulation of the argument projectRootPath/filePath can lead to path traversal. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. isPathInsideProjectRoot only blocks filePath escaping the attacker-chosen projectRootPath; the root itself is untrusted client input - set projectRootPath=/etc, filePath=hosts and the guard passes. The project was informed of the problem early through an issue report but has not responded yet.
- CVSS
- 4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
0215AndrewFeng ACE-MCP 0215andrewfeng:ace-mcp | 4.10.0; 4.10.1; 4.10.2; 4.10.3; 4.10.4; 4.10.5; 4.10.6; 4.10.7; and 1 more ranges | CNA record |
References
- https://vuldb.com/vuln/407975vdb-entry, technical-description
- https://vuldb.com/vuln/407975/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-94046third-party-advisory
- https://vuldb.com/submit/949256third-party-advisory
- https://github.com/0215AndrewFeng/ACE-MCP/issues/1issue-tracking
- https://github.com/Xh1Xxhg/public_exp/issues/3exploit, issue-tracking
- https://github.com/0215AndrewFeng/ACE-MCP/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.