CVE-2026-17433 nanocoai NanoClaw MCP Server Approval chat-sdk-bridge.ts createChatSdkBridge.setup improper authorization
Local attackers can bypass authorization in NanoClaw's MCP Server Approval component due to improper checks in the chat SDK bridge setup.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-17433?
CVE-2026-17433 is a medium-severity missing authorization vulnerability in nanocoai NanoClaw, published on 26 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Which versions are affected by CVE-2026-17433?
How do I fix CVE-2026-17433?
No fix has been published for CVE-2026-17433 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-17433 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-17433 exists.
Sources
Also known as GHSA-6frr-4xvp-cwch.