Improper Authorization in NanoClaw by Nanocoai
CVE-2026-17433

4.8MEDIUM

Key Information:

Vendor

Nanocoai

Status
Nanoclaw
Vendor
CVE Published:
26 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-17433?

A vulnerability exists in the NanoClaw product by Nanocoai, specifically impacting the createChatSdkBridge.setup function within the src/channels/chat-sdk-bridge.ts file of the MCP Server Approval component. This flaw allows for unauthorized actions due to improper access control measures, making the system susceptible to local exploitation. Despite prior notification of the issue through an issue report, no response has been issued from the development team, leaving users at risk. Immediate action is recommended to safeguard against potential exploits as details about this vulnerability are now publicly available.

Affected Version(s)

NanoClaw 2.0.0

NanoClaw 2.0.1

NanoClaw 2.0.2

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-2026-17433 - Proof of Concept

References

https://vuldb.com/vuln/383074
vdb-entrytechnical-description
https://vuldb.com/vuln/383074/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-17433
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
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

Erichen-x (VulDB User)
VulDB CNA Team
.