CVE-2026-109443
8.8, highJoySafeter through 1.0.0 contains a remote code execution vulnerability that allows authenticated users to run operating system commands…
- CVSS
- 8.8, high high CVSS v3.1
- EPSS, next 30 days
- n/a
- Exploitation
- No public evidence
- Published
- 20 Oct 2026today
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.
Details
- Vendor
- Jd-opensource
- Product
- JoySafeter
- Weakness
- CWE-653 (opens in a new tab)
- Status
- Received
- Updated
- 20 Oct 2026
- Assigner
- disclosure@vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References 4
Other references 3
- github.com /jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/backend/app/core/agent/backends/utils/command_executor.py#L110 (opens in a new tab)
- github.com /jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/backend/app/services/copilot_service.py#L106 (opens in a new tab)
- vulncheck.com /advisories/joysafeter-through-1.0.0-authenticated-rce-via-copilot-standard-mode-shell (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Beyond this page
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 20 Oct 2026, not the live upstream state.