CVE-2026-17433

nanocoai NanoClaw MCP Server Approval chat-sdk-bridge.ts createChatSdkBridge.setup improper authorization

State: Published
Severity: 4.8 Medium
Published: Jul 26, 2026
Updated: Jul 27, 2026
Reserved: Jul 25, 2026

Description

A vulnerability was detected in nanocoai NanoClaw up to 2.0.64. This impacts the function createChatSdkBridge.setup of the file src/channels/chat-sdk-bridge.ts of the component MCP Server Approval. Performing a manipulation results in improper authorization. The attack needs to be approached locally. 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.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	5.3 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	5.3 Medium	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	4.3 Medium	AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-285 Improper Authorization
CWE-266 Incorrect Privilege Assignment

Affected Products

Product	Versions
NanoClawnanocoai	2.0.0Affected 2.0.1Affected 2.0.2Affected 2.0.3Affected 2.0.4Affected 2.0.5Affected 2.0.6Affected 2.0.7Affected 2.0.8Affected 2.0.9Affected 2.0.10Affected 2.0.11Affected 2.0.12Affected 2.0.13Affected 2.0.14Affected 2.0.15Affected 2.0.16Affected 2.0.17Affected 2.0.18Affected 2.0.19Affected 2.0.20Affected 2.0.21Affected 2.0.22Affected 2.0.23Affected 2.0.24Affected and 40 more versions

References

VDB-383074 | nanocoai NanoClaw MCP Server Approval chat-sdk-bridge.ts createChatSdkBridge.setup improper authorizationvdb-entrytechnical-description
VDB-383074 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-17433 | CVE Analysis and Reportthird-party-advisory
Submit #862450 | NanoCoAI NanoClaw 2.0.64 Missing Authentication for Critical Function (CWE-306)third-party-advisory
https://github.com/nanocoai/nanoclaw/issues/2761exploitissue-tracking
https://github.com/nanocoai/nanoclaw/product

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