CVE-2026-81486
bsmi021 mcp-file-context-server Path Resolution index.ts read_context path traversal
- State
- Published
- Severity
- 6.9 Medium
- Published
- Aug 27, 2026
- Updated
- Aug 27, 2026
- Reserved
- Aug 26, 2026
Description
A vulnerability was detected in bsmi021 mcp-file-context-server 1.0.0. Affected by this issue is the function read_context of the file src/index.ts of the component Path Resolution. Performing a manipulation of the argument path results in path traversal. It is possible to initiate the attack remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R | VulDB |
| 3.0 | 5.3 Medium | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R | VulDB |
| 2.0 | 5.0 Medium | AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-22 Path Traversal
Affected Products
| Product | Versions |
|---|---|
mcp-file-context-serverbsmi021 |
|
References
- VDB-395980 | bsmi021 mcp-file-context-server Path Resolution index.ts read_context path traversalvdb-entrytechnical-description
- VDB-395980 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- CVE-2026-81486 | CVE Analysis and Reportthird-party-advisory
- Submit #887137 | bsmi021 mcp-file-context-server 1.0.0 Arbitrary File Readthird-party-advisory
- https://github.com/bsmi021/mcp-file-context-server/issues/15exploitissue-tracking
- https://github.com/bsmi021/mcp-file-context-server/product
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