MCPHub has an Improper Authorization vulnerability via its handleSseConnection function
A vulnerability was identified in samanhappy MCPHub up to 0.9.10. This vulnerability affects the function handleSseConnection 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 software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @samanhappy/mcphub | <= 0.9.10 | no fix |
References
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P- Weakness (CWE)
CWE-287- Platform
- npm
- Package
@samanhappy/mcphub- Disclosed
- 05.10.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-v7c4-33vf-cqqq - CC BY 4.0
Vulnerability history: @samanhappy/mcphub
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 10.2025 05.2026
- Without a fix
- 2
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
- Medium 2
- Low 1
Disclosures per year
- 2025: 2
- 2026: 3
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MCPHub has an Improper Authorization vulnerability via its handleSseConnection function this entry
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