CVE-2026-109443
CVE-2026-109443 · JoySafeter through 1.0.0 Authenticated RCE via Copilot Standard Mode Shell
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.7 · High · EPSS 0.7%
- Published
- Updated
Affected products and versions
joysafeter
- Versions
- ≥ 0, ≤ 1.0.0: Affected (semver)
No fix published
Original sources
- https://www.lasso.security/vulnerability-database/cve-2026-109443
- https://github.com/jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/backend/app/core/agent/backends/utils/command_executor.py#L110
- https://github.com/jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/backend/app/services/copilot_service.py#L106
- https://www.vulncheck.com/advisories/joysafeter-through-1.0.0-authenticated-rce-via-copilot-standard-mode-shell
- https://nvd.nist.gov/vuln/detail/CVE-2026-109443