CVE-2026-30625 | Upsonic 0.71.6 contains a remote code execution vulnerabilit… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-30625
State: PUBLISHED
Assigner: mitre
Reserved: 2026-03-04 00:00 UTC
Published: 2026-04-15 00:00 UTC
Last updated: 2026-04-16 13:55 UTC
Primary CWE: CWE-77
CWE-77 Improper Neutralization of Special Elements used in a…
Vendor / Product: n/a / n/a
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
n/a	n/a	—	n/a

Weakness (CWE)

CWE	Source	Description
—	cna	n/a
CWE-77	adp	CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (2)