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CVE-2026-81491— boxpositron with-context-mcp index.ts project_folder path traversal

Quick assessment

Affected
boxpositron with-context-mcp
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

David Ibia WithContext MCP Server是David Ibia个人开发者的一款提供上下文功能的MCP工具。 David Ibia WithContext MCP Server 3.0.7及之前版本存在路径遍历漏洞，该漏洞源于src/index.ts文件中的ingest_notes/teleport_notes/sync_notes/project_folder函数存在路径遍历问题，可能导致远程攻击。

CVSS 7.3 · High EPSS 0.59% · P47

Affected Version Matrix 8

VendorProduct Version RangeStatus
boxpositron with-context-mcp 3.0.0 affected
3.0.1 affected
3.0.2 affected
3.0.3 affected
3.0.4 affected
3.0.5 affected
3.0.6 affected
3.0.7 affected
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I. Basic Information for CVE-2026-81491

Vulnerability Information
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Vulnerability Title
boxpositron with-context-mcp index.ts project_folder path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in boxpositron with-context-mcp up to 3.0.7. This affects the function ingest_notes/teleport_notes/sync_notes/project_folder of the file src/index.ts. Executing a manipulation can lead to path traversal. It is possible to launch the attack remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
David Ibia WithContext MCP Server 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
David Ibia WithContext MCP Server是David Ibia个人开发者的一款提供上下文功能的MCP工具。 David Ibia WithContext MCP Server 3.0.7及之前版本存在路径遍历漏洞，该漏洞源于src/index.ts文件中的ingest_notes/teleport_notes/sync_notes/project_folder函数存在路径遍历问题，可能导致远程攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
boxpositron with-context-mcp 3.0.0 cpe:2.3:a:boxpositron:with-context-mcp:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-81491

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 7756 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-81491

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Vendor Advisories for CVE-2026-81491 (1)

Proof of Concept for CVE-2026-81491 (1)

Other References for CVE-2026-81491 (2)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2026-81491

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