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CVE-2026-109443— JoySafeter through 1.0.0 Authenticated RCE via Copilot Standard Mode Shell

Quick assessment

Affected
jd-opensource JoySafeter
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

JoySafeter 1.0.0 及更早版本存在远程代码执行漏洞。该漏洞允许已认证用户通过 Copilot 标准模式中未沙箱化的执行工具，在操作系统层面运行任意命令。攻击者可自行注册账户，在 WebSocket 聊天扩展（chat.start）中启用“标准模式”，进而诱导智能体在主机上调用 并设置 参数，从而访问其他租户的数据及服务器敏感信息。

CVSS 8.8 · High EPSS 0.70% · P53

Affected Version Matrix 1

VendorProduct Version RangeStatus
jd-opensource JoySafeter ≤ 1.0.0 affected
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I. Basic Information for CVE-2026-109443

Vulnerability Information
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Vulnerability Title
JoySafeter through 1.0.0 Authenticated RCE via Copilot Standard Mode Shell
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的划分
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
jd-opensource JoySafeter 0 ~ 1.0.0 -

II. Public POCs for CVE-2026-109443

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III. Intelligence Information for CVE-2026-109443

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Vendor Advisories for CVE-2026-109443 (1)

Proof of Concept for CVE-2026-109443 (1)

Other References for CVE-2026-109443 (1)

IV. Related Vulnerabilities

Same weakness: CWE-653

V. Comments for CVE-2026-109443

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