{"id":"CVE-2026-109443","summary":"JoySafeter through 1.0.0 Authenticated RCE via Copilot Standard Mode Shell","details":"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.","modified":"2026-10-20T10:45:57.441964679Z","published":"2026-10-20T00:46:07.343Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109443.json","cna_assigner":"VulnCheck","cwe_ids":["CWE-653"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/109xxx/CVE-2026-109443.json"},{"type":"PACKAGE","url":"https://github.com/jd-opensource/JoySafeter"},{"type":"ARTICLE","url":"https://github.com/jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/backend/app/core/agent/backends/utils/command_executor.py#L110"},{"type":"ARTICLE","url":"https://github.com/jd-opensource/JoySafeter/blob/12234a11a9d96acef85577afb1fa5682169d6171/backend/app/services/copilot_service.py#L106"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109443"},{"type":"EVIDENCE","url":"https://www.lasso.security/vulnerability-database/cve-2026-109443"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/joysafeter-through-1.0.0-authenticated-rce-via-copilot-standard-mode-shell"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jd-opensource/joysafeter","events":[{"introduced":"0"},{"last_affected":"12234a11a9d96acef85577afb1fa5682169d6171"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"0"},{"last_affected":"1.0.0"}]}]}}],"versions":["v1.0.0","v0.3.2","v0.3.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-109443.json"}}],"schema_version":"1.9.1","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}