CVE-2026-30625

Upsonic 0.71.6 contains a remote code execution vulnerability in its MCP server/task creation functionality

Critical · published April 15, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
67.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01198 · 67.9th percentile
Published
2026-04-15T00:00Z
EPSS history
Timeline
  • 15 APR 00:00Z
    Upsonic 0.71.6 contains a remote code execution vulnerability in its MCP server/task creation functionality
    cvelistv5