Vulnerability · Published Jul 14, 2025 · Assigned by GitHub_M
CVE-2025-53818github-kanban-mcp-server Command Injection vulnerability
High 8.9
In plain English
A high-severity OS command injection in github-kanban-mcp-server from Sunwood-ai-labs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities).
Official description
GitHub Kanban MCP Server is a Model Context Protocol (MCP) server for managing GitHub issues in Kanban board format and streamlining LLM task management. Version 0.3.0 of the MCP Server is written in a way that is vulnerable to command injection vulnerability attacks as part of some of its MCP Server tool definition and implementation. The MCP Server exposes the tool `add_comment` which relies on Node.js child process API `exec` to execute the GitHub (`gh`) command, is an unsafe and vulnerable API if concatenated with untrusted user input. As of time of publication, no known patches are available.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @sunwood-ai-labs/github-kanban-mcp-server | no fix listed | GHSA-6jx8-rcjx-vmwf |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Sunwood-ai-labs | github-kanban-mcp-server | = 0.3.0 |
Weakness: CWE-78 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
References
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/security/advisories/GHSA-6jx8-rcjx-vmwf x_refsource_CONFIRM
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/blob/main/src/handlers/comment-handlers.ts#L8 x_refsource_MISC
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/blob/main/src/handlers/tool-handlers.ts#L79 x_refsource_MISC
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/blob/v0.4.0/src/handlers/comment-handlers.ts#L8-L23 x_refsource_MISC