github-kanban-mcp-server Command Injection vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-78.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Sunwood-ai-labs | github-kanban-mcp-server | = 0.3.0 | — | No fix listed | CNA |
| — | @sunwood-ai-labs/github-kanban-mcp-server (npm) | up to 0.3.0 | — | No fix listed | GHSA-6jx8-rcjx-vmwf |
- github-kanban-mcp-server VendorSunwood-ai-labs Affected = 0.3.0 Fixed in — No fix listed CNA
- @sunwood-ai-labs/github-kanban-mcp-server (npm) Vendor— Affected up to 0.3.0 Fixed in — No fix listed GHSA-6jx8-rcjx-vmwf
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-53818
- 2026-10-03 Alias added: GHSA-6jx8-rcjx-vmwf
References
Other 5
- 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/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
More Sunwood-ai-labs vulnerabilities
- TI-2026-06676 Sunwood-ai-labs command-executor-mcp-server MCP index.ts execute_command os command injection CVSS 4.0MEDIUM 6.9
- TI-2026-80472 Command injection in Sunwood-ai-labs github-kanban-mcp-server CVSS 4.0MEDIUM 5.3
Sources
- CVE-2025-53818 · CVE Program
- CVE-2025-53818 · NVD
- FIRST EPSS
- GHSA-6jx8-rcjx-vmwf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences