CVE-2026-79745
- Source
- https://cve.org/CVERecord?id=CVE-2026-79745
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-79745.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-79745
- Aliases
-
- GHSA-6cvf-cfch-4g7m
- Published
- 2026-08-31T17:56:17.622Z
- Modified
- 2026-09-02T03:47:22.781454583Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
- Summary
- MCPHub: Missing Authorization on Built-in Prompt & Resource CRUD (Unauthorized Tampering of Globally-Served Templates/Resources)
- 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 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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79745.json", "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-862" ] }- References
-
- https://github.com/samanhappy/mcphub/releases/tag/v1.0.32
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79745.json
- https://github.com/samanhappy/mcphub/security/advisories/GHSA-6cvf-cfch-4g7m
- https://nvd.nist.gov/vuln/detail/CVE-2026-79745
- https://github.com/samanhappy/mcphub/commit/6ba55ac63954a71506e61c088753251e2ff643cf
- https://github.com/samanhappy/mcphub/pull/1069