CVE-2026-109443 (GCVE-0-2026-109443)
Vulnerability from cvelistv5 – Published: 2026-10-20 00:46 – Updated: 2026-10-22 21:04
VLAI
EPSS
VEX
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 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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 13:50 UTC
CWE
- CWE-653 - Improper Isolation or Compartmentalization
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.lasso.security/vulnerability-database… | technical-descriptionexploit |
| https://github.com/jd-opensource/JoySafeter/blob/… | technical-description |
| https://github.com/jd-opensource/JoySafeter/blob/… | technical-description |
| https://www.vulncheck.com/advisories/joysafeter-t… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| jd-opensource | JoySafeter |
Affected:
0 , ≤ 1.0.0
(semver)
|
guessed |
Date Public
2026-10-15 00:00
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