CVE-2026-109443
High
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.
SeverityHigh
CVSS8.8
Exploit probability—
ProductJoySafeter
PublishedOct 20, 2026
First seenOct 20, 2026
Weakness typeCWE-653CWE-653
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| jd-opensource JoySafeter | v ≤ 1.0.0 | — |
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