{"id":"CVE-2026-79748","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-79748","summary":"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 0.12.15,…","details":"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 0.12.15, the POST /api/servers and PUT /api/servers/:name endpoints in MCPHub create/update MCP server configurations and then immediately spawn the configured stdio process via child_process.spawn. Authentication is required, but there is no authorization check restricting these endpoints to admins, and there is no allowlist/sanitization on the command and args fields. As a result, any authenticated non-admin user can submit a server configuration with command:\"/bin/sh\" (or any other binary) and arbitrary args, causing MCPHub to execute the attacker-controlled process as the MCPHub server's OS user (commonly root in the published Docker image and in npx/systemd deployments). This issue has been patched in version 0.12.15.","published":"2026-08-31T18:17:20.340","modified":"2026-08-31T18:17:20.340","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/samanhappy/mcphub/pull/770","label":"samanhappy/mcphub#770"},"references":[{"type":"WEB","url":"https://github.com/samanhappy/mcphub/pull/770"},{"type":"WEB","url":"https://github.com/samanhappy/mcphub/releases/tag/v0.12.15"},{"type":"WEB","url":"https://github.com/samanhappy/mcphub/security/advisories/GHSA-mx89-jjx9-gjr8"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-31T18:17:20.340"}}