Vulnerability Description
MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 0.12.13, MCPB File Upload Handler extracts a ZIP file and reads manifest.json from it. The name field in the manifest is directly concatenated into a file path (line 107) without any sanitization or path traversal character validation. An attacker can craft a malicious MCPB file where manifest.name is set to something like ../../../etc/malicious, causing the file to be extracted to an arbitrary location on the file system. The cleanupOldMcpbServer function (line 110) also uses the unsanitized name, potentially allowing deletion of arbitrary directories. This issue has been patched in version 0.12.13.
Related Weaknesses (CWE)
References
- https://github.com/samanhappy/mcphub/pull/770
- https://github.com/samanhappy/mcphub/releases/tag/v0.12.13
- https://github.com/samanhappy/mcphub/security/advisories/GHSA-p3h2-2j4p-p83g
- https://github.com/samanhappy/mcphub/security/advisories/GHSA-p3h2-2j4p-p83g
FAQ
What is CVE-2026-79743?
CVE-2026-79743 is a documented vulnerability. MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 0.12.13, MCPB File Upl...
How severe is CVE-2026-79743?
CVSS scoring is not yet available for CVE-2026-79743. Check NVD for updates.
Is there a patch for CVE-2026-79743?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.