Paper/Archive/CVE-2026-30625

CVE-2026-30625

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

CVSS 9.8 (ADP)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 62.1.621 × 2012.4 No public exploit+100.0 SSVC exploitation: none+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

n/an/a–CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/Upsonic/Upsonic/commit/855053fce0662227d9246268ff4a0844b481a305 refox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem