CVE-2026-79744: CWE-269: Improper Privilege Management in samanhappy mcphub
Description
CVE-2026-79744 is a high severity vulnerability in samanhappy mcphub prior to version 1.0.29. The PUT /api/system-config endpoint lacks proper authorization checks, relying only on app-wide authentication and rate limiting without verifying administrative privileges. This improper privilege management allows users with limited privileges to potentially modify system configuration. The issue has been fixed in version 1.0.29.
CVSS v3.1
Score 8.8high
Affected software
samanhappy
mcphub
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
MCPHub is a management hub for multiple MCP servers/APIs. Before version 1.0.29, its PUT /api/system-config endpoint (handled by updateSystemConfig) does not perform authorization checks to verify if the requester is an administrator. It only uses authentication middleware and rate limiting, which means any authenticated user with lower privileges can invoke this endpoint to change system configurations. This vulnerability is classified under CWE-269 (Improper Privilege Management) and CWE-862 (Missing Authorization). The vulnerability has been patched in version 1.0.29.
Potential Impact
An attacker with authenticated access but without administrative privileges can exploit this vulnerability to modify system configuration settings. This can lead to a complete compromise of confidentiality, integrity, and availability of the affected system, as indicated by the CVSS vector (Confidentiality: High, Integrity: High, Availability: High).
Mitigation Recommendations
Upgrade to mcphub version 1.0.29 or later, where the authorization check for administrative privileges on the PUT /api/system-config endpoint has been implemented. No other mitigation guidance is provided. Patch status is confirmed by the vendor stating the issue is fixed in version 1.0.29.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-25T14:08:18.108Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a95c2eeacd9273b496c0dd5
Added to database: 08/31/2026, 18:07:42 UTC
Last enriched: 09/07/2026, 15:23:52 UTC
Last updated: 10/14/2026, 06:48:21 UTC
Views: 65
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