HIGH 8.7 NVD
CVE-2026-109443
JoySafeter through 1.0.0 contains a remote code execution vulnerability that allows authenticated users to run operating system commands via an unsandboxed exec
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.
References
- https://github.com/jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/
- https://github.com/jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/
- https://www.lasso.security/vulnerability-database/cve-2026-109443
- https://www.vulncheck.com/advisories/joysafeter-through-1.0.0-authenticated-rce-via-copilo
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-10-20 via NVD.
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