CVE-2026-109443

HighCVSS 8.8/10Last modified Oct 20, 2026

Description

JoySafeter through 1.0.0 contains a remote code execution vulnerability that allows authenticated users to run operating system commands via an unsandboxed execute tool in Copilot standard mode. Attackers can self-register, select standard mode in the WebSocket chat.start extension, and have the agent invoke subprocess.run with shell=True on the host to access other tenants' data and server secrets.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-653

Affected software

Vendor	Product	Versions
jd-opensource	JoySafeter	<= 1.0.0

References

Timeline

Published: Oct 20, 2026
Last modified: Oct 20, 2026
NVD status: Deferred

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