CVE-2026-79748: CWE-862: Missing Authorization in samanhappy mcphub
Description
CVE-2026-79748 is a critical vulnerability in samanhappy's MCPHub prior to version 0.12.15. It involves missing authorization checks on POST /api/servers and PUT /api/servers/:name endpoints, allowing any authenticated non-admin user to execute arbitrary OS commands as the MCPHub server user. The flaw arises because these endpoints spawn configured processes without restricting command or argument inputs, potentially leading to full system compromise. The issue has been patched in version 0.12.15.
CVSS v3.1
Score 9.9critical
Affected software
samanhappy
mcphub
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
MCPHub versions before 0.12.15 have a missing authorization vulnerability (CWE-862) on endpoints that create or update MCP server configurations and spawn processes. Although authentication is required, there is no authorization limiting these actions to admin users. Attackers with valid non-admin credentials can submit configurations with arbitrary commands (e.g., /bin/sh) and arguments, causing MCPHub to execute attacker-controlled processes with the privileges of the MCPHub server OS user, often root. This vulnerability has a CVSS 3.1 score of 9.9, indicating critical severity. The issue is fixed in version 0.12.15.
Potential Impact
An authenticated non-admin user can execute arbitrary OS commands with the privileges of the MCPHub server process, commonly root, leading to full system compromise including confidentiality, integrity, and availability impacts.
Mitigation Recommendations
Upgrade MCPHub to version 0.12.15 or later where this vulnerability is patched. Until then, restrict access to MCPHub to trusted users only. No official patch links are provided in the source data, so verify the vendor advisory for the latest remediation details.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-25T14:08:18.109Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a95c2eeacd9273b496c0ddd
Added to database: 08/31/2026, 18:07:42 UTC
Last enriched: 09/07/2026, 15:28:01 UTC
Last updated: 10/13/2026, 18:48:24 UTC
Views: 164
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.