---
id: CVE-2026-109443
title: JoySafeter through 1.0.0 Authenticated RCE via Copilot Standard Mode Shell
summary: >-
  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
  standa…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-653
vendor: jd-opensource
product: JoySafeter
affected:
  - JoySafeter <= 1.0.0
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T00:46:07.343Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-109443'
references:
  - url: 'https://www.lasso.security/vulnerability-database/cve-2026-109443'
    label: Lasso.security Advisory
  - url: >-
      https://github.com/jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/backend/app/core/agent/backends/utils/command_executor.py#L110
  - url: >-
      https://github.com/jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/backend/app/services/copilot_service.py#L106
  - url: >-
      https://www.vulncheck.com/advisories/joysafeter-through-1.0.0-authenticated-rce-via-copilot-standard-mode-shell
    label: >-
      VulnCheck Advisory: JoySafeter through 1.0.0 Authenticated RCE via Copilot
      Standard Mode Shell
tags:
  - cve.org
ingestedAt: '2026-10-20T01:49:42.626Z'
---

## Overview

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.

## Affected

- `JoySafeter <= 1.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.