{"id":"CVE-2026-79745","title":"MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies","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 1.0.32, the built-in prompt and resource controllers perfor…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","cwe":["CWE-862"],"published":"2026-08-31","updated":"2026-09-08","sourceUpdated":"2026-09-08T21:08:37.320","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-79745","references":[{"url":"https://github.com/samanhappy/mcphub/commit/6ba55ac63954a71506e61c088753251e2ff643cf","label":"security-advisories@github.com"},{"url":"https://github.com/samanhappy/mcphub/pull/1069","label":"security-advisories@github.com"},{"url":"https://github.com/samanhappy/mcphub/releases/tag/v1.0.32","label":"security-advisories@github.com"},{"url":"https://github.com/samanhappy/mcphub/security/advisories/GHSA-6cvf-cfch-4g7m","label":"security-advisories@github.com"},{"url":"https://github.com/samanhappy/mcphub/security/advisories/GHSA-6cvf-cfch-4g7m","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00246,"epssPercentile":0.16158,"ingestedAt":"2026-09-08T21:11:12.288Z","slug":"CVE-2026-79745","body":"## Overview\n\nMCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 1.0.32, the built-in prompt and resource controllers perform no role checking. The mutating POST/PUT /api/prompts* and POST/PUT /api/resources* routes are attached to the authenticated router with no admin gate, and the handlers never read req.user. The DAO singletons they write are consulted first — ahead of any connected MCP server — for every session in handleGetPromptRequest / handleReadResourceRequest. A non-admin can therefore create, overwrite, and shadow global prompt templates and resources that all other users are served. The scored impact is the unauthorized integrity violation (creation/tampering/shadowing of globally-served records); stored prompt injection into other users' LLM sessions is a downstream consequence of that tampering. This issue has been patched in version 1.0.32.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}