Upsonic 0.71.6 contains a remote code execution vulnerability in its MCP server/task creation functionality. The application allows users to define MCP tasks with arbitrary command and args values. Although an allowlist exists, certain allowed commands (npm, npx) accept argument flags that enable execution of arbitrary OS commands. Maliciously crafted MCP tasks may lead to remote code execution with the privileges of the Upsonic process. In version 0.72.0 Upsonic added a warning about using Stdio servers being able to execute commands directly on the machine.
History

Fri, 17 Apr 2026 09:15:00 +0000

Type Values Removed Values Added
Title Remote Command Injection via MCP Task Creation in Upsonic 0.71.6
Weaknesses CWE-78

Thu, 16 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-77
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 15 Apr 2026 22:45:00 +0000

Type Values Removed Values Added
Title Remote Command Injection via MCP Task Creation in Upsonic 0.71.6
Weaknesses CWE-78

Wed, 15 Apr 2026 19:30:00 +0000

Type Values Removed Values Added
First Time appeared Upsonic
Upsonic upsonic
Vendors & Products Upsonic
Upsonic upsonic

Wed, 15 Apr 2026 15:30:00 +0000

Type Values Removed Values Added
Description Upsonic 0.71.6 contains a remote code execution vulnerability in its MCP server/task creation functionality. The application allows users to define MCP tasks with arbitrary command and args values. Although an allowlist exists, certain allowed commands (npm, npx) accept argument flags that enable execution of arbitrary OS commands. Maliciously crafted MCP tasks may lead to remote code execution with the privileges of the Upsonic process. In version 0.72.0 Upsonic added a warning about using Stdio servers being able to execute commands directly on the machine.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-04-15T00:00:00.000Z

Updated: 2026-04-16T13:55:52.158Z

Reserved: 2026-03-04T00:00:00.000Z

Link: CVE-2026-30625

cve-icon Vulnrichment

Updated: 2026-04-16T13:54:49.421Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-15T16:16:36.787

Modified: 2026-04-17T15:09:46.880

Link: CVE-2026-30625

cve-icon Redhat

No data.