Path Traversal in Bsmi021 Mcp-File-Context-Server
CVE-2026-81486
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.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.005 (39.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Bsmi021 Mcp-file-context-server — versions 1.0.0
Weakness classification (CWE)
References
- cna@vuldb.com (product)
- cna@vuldb.com (issue-tracking, exploit)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-81486?
- CVE-2026-81486 is a medium-severity vulnerability in Bsmi021 Mcp-File-Context-Server, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-08-27.
- How severe is CVE-2026-81486?
- Medium severity. CVSS v3 base score is 5.3 out of 10.