CVE-2026-79747: high-severity vulnerability in samanhappy mcphub
MCPHub vulnerable to SSRF: a non-admin user can make mcphub request arbitrary URLs and read the response (OpenAPI proxy + transport dial)
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.3%
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, an authenticated non-admin user can register a server pointing at an arbitrary URL and make the hub issue server-side requests to it, with no egress filtering (no block of loopback / RFC1918 / link-local 169.254.0.0/16). Via the OpenAPI proxy path the response body is returned to the caller (full, reflected SSRF); via the SSE/streamable-http transport the request is sent blind. This issue has been patched in version 1.0.32.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Affected products
samanhappy · mcphubRelated CVEs — samanhappy mcphub
In the same product, most dangerous first.
CVE-2026-79748CRITICALMCPHub: Authenticated non-admin user achieves RCE via POST /api/servers (missing authorization on stdio command/args)EPSS 0.6%CVE-2026-79744HIGHMCPHub: Missing Authorization on `PUT /api/system-config` Lets Any Non-Admin Rewrite Global Security ConfigurationEPSS 0.6%CVE-2026-90474HIGHMCPHub before 1.0.32 OAuth 2.0 Authentication BypassEPSS 0.6%CVE-2026-79743MEDIUMMCPHub: Path Traversal via Malicious MCPB Manifest NameEPSS 0.5%CVE-2026-79749HIGHMCPHub: SSRF Guard Bypass via IPv6 Transition Addresses in URL ValidationEPSS 0.4%CVE-2026-79745HIGHMCPHub: Missing Authorization on Built-in Prompt & Resource CRUD (Unauthorized Tampering of Globally-Served Templates/Resources)EPSS 0.4%