Path Traversal Vulnerability in bsmi021 mcp-file-context-server
CVE-2026-81486

6.9MEDIUM

Key Information:

Vendor

Bsmi021

Status
Mcp-file-context-server
Vendor
CVE Published:
27 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-81486?

A vulnerability has been identified in bsmi021's mcp-file-context-server version 1.0.0, specifically in the read_context function located in src/index.ts. This flaw allows attackers to manipulate the argument path, leading to potential path traversal attacks. This vulnerability can be exploited remotely, which raises significant security concerns. The issue was reported to the project maintainers, but there has been no response or resolution as of yet. It is crucial for users of this software to apply any necessary patches and remain vigilant against possible exploits.

Affected Version(s)

mcp-file-context-server 1.0.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-81486 - Proof of Concept

References

https://vuldb.com/vuln/395980
vdb-entrytechnical-description
https://vuldb.com/vuln/395980/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-81486
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

cccccccti (VulDB User)
VulDB CNA Team
.