Vulnerability · Published Oct 5, 2025 · Assigned by VulDB
CVE-2025-11287samanhappy MCPHub sseService.ts handleSseConnectionfunction improper authentication
High 7.3
In plain English
A high-severity improper authentication in MCPHub from samanhappy. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Official description
A vulnerability was identified in samanhappy MCPHub up to 0.9.10. This vulnerability affects the function handleSseConnectionfunction of the file src/services/sseService.ts. Such manipulation leads to improper authentication. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | @samanhappy/mcphub | no fix listed | GHSA-v7c4-33vf-cqqq |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| samanhappy | MCPHub | 0.9.00.9.10.9.20.9.30.9.40.9.50.9.60.9.7 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-327045 | samanhappy MCPHub sseService.ts handleSseConnectionfunction improper authentication vdb-entry, technical-description
- VDB-327045 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #661170 | samanhappy mcphub v0.9.10 Unauthorized access third-party-advisory
- https://github.com/August829/YU1/issues/8 exploit, issue-tracking