Path Traversal Flaw in UsamaK98 Python Notebook MCP
CVE-2026-7810

6.9MEDIUM

Key Information:

Vendor

Usamak98

Status
Python-notebook-mcp
Vendor
CVE Published:
5 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7810?

A path traversal vulnerability has been identified in UsamaK98's python-notebook-mcp, affecting the create_notebook, read_notebook, edit_cell, and add_cell functions within server.py. This flaw allows attackers to navigate the file system and access unauthorized files remotely, which may lead to sensitive data exposure. The project maintains a rolling release model, hence specific version information for affected and repaired releases remains unavailable. Despite having been alerted to this issue through a submitted report, no response has been issued by the developers as of yet.

Affected Version(s)

python-notebook-mcp a05a232815809a7e425b5fa7be26e0d4369894c2

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-2026-7810 - Proof of Concept

References

https://vuldb.com/vuln/361070
vdb-entrytechnical-description
https://vuldb.com/vuln/361070/cti
signaturepermissions-required
https://vuldb.com/submit/807748
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

CPT_Penner (VulDB User)
VulDB CNA Team
.