CVSS 4.0
8.9 highCVSS: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:PCVE-2025-53818
High (8.9). EPSS 1.4% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
- CWE
- CWE-78
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-6jx8-rcjx-vmwf | npm | @sunwood-ai-labs/github-kanban-mcp-server | <=0.3.0 | no fix published |
References
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/blob/main/src/handlers/comment-handlers.ts#L8
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/blob/main/src/handlers/tool-handlers.ts#L79
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/blob/v0.4.0/src/handlers/comment-handlers.ts#L8-L23
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/security/advisories/GHSA-6jx8-rcjx-vmwf
- https://github.com/Sunwood-ai-labs/github-kanban-mcp-server/security/advisories/GHSA-6jx8-rcjx-vmwf