{"id":"CVE-2026-57206","aliases":["EUVD-2026-44942","GHSA-g6gr-xp46-hrmj"],"status":"published","title":"SimpleChat plugin validation endpoints missing authentication and authorization","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.206, several plugin validation routes in application/single_app/plugin_validation_endpoint.py, including `POST /api/admin/plugins/test-instantiation`, `GET /api/admin/plugins/health-check/\u003cplugin_name\u003e`, `POST /api/admin/plugins/repair/\u003cplugin_name\u003e`, and `POST /api/plugins/validate`, relied on @swagger_route(security=get_auth_security()) documentation without enforcing @login_required, @user_required, or @admin_required at runtime, allowing unauthenticated or unauthorized clients to invoke plugin validation, health, and repair behavior. This issue is fixed in version 0.241.206.","severity":{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00956,"percentile":0.61848,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-306","CWE-862"],"published":"2026-07-16T15:17:05Z","modified":"2026-10-28T02:30:41Z","products":[{"vendor":"microsoft","product":"simplechat"}],"references":[{"url":"https://github.com/microsoft/simplechat/security/advisories/GHSA-g6gr-xp46-hrmj","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/microsoft/simplechat/blob/main/docs/explanation/fixes/PLUGIN_VALIDATION_ROUTE_AUTH_FIX.md","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/microsoft/simplechat/releases/tag/v0.250.001","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57206.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57206","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-57206","title":"SimpleChat plugin validation endpoints missing authentication and authorization","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.206, several plugin validation routes in application/single_app/plugin_validation_endpoint.py, including `POST /api/admin/plugins/test-instantiation`, `GET /api/admin/plugins/health-check/\u003cplugin_name\u003e`, `POST /api/admin/plugins/repair/\u003cplugin_name\u003e`, and `POST /api/plugins/validate`, relied on @swagger_route(security=get_auth_security()) documentation without enforcing @login_required, @user_required, or @admin_required at runtime, allowing unauthenticated or unauthorized clients to invoke plugin validation, health, and repair behavior. This issue is fixed in version 0.241.206.","status":"published","published":"2026-07-16T15:17:05.558Z","modified":"2026-07-16T18:53:39.456Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-306","CWE-862"],"updated_at":"2026-11-02T13:43:44.898272Z"}],"euvd":[{"id":"EUVD-2026-44942","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.206, several plugin validation routes in application/single_app/plugin_validation_endpoint.py, including `POST /api/admin/plugins/test-instantiation`, `GET /api/admin/plugins/health-check/\u003cplugin_name\u003e`, `POST /api/admin/plugins/repair/\u003cplugin_name\u003e`, and `POST /api/plugins/validate`, relied on @swagger_route(security=get_auth_security()) documentation without enforcing @login_required, @user_required, or @admin_required at runtime, allowing unauthenticated or unauthorized clients to invoke plugin validation, health, and repair behavior. This issue is fixed in version 0.241.206.","status":"published","published":"2026-07-16T15:17:05Z","modified":"2026-07-16T18:53:39Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L","level":"high"}],"updated_at":"2026-11-02T18:19:51.364603Z"}],"nvd":[{"id":"CVE-2026-57206","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.206, several plugin validation routes in application/single_app/plugin_validation_endpoint.py, including `POST /api/admin/plugins/test-instantiation`, `GET /api/admin/plugins/health-check/\u003cplugin_name\u003e`, `POST /api/admin/plugins/repair/\u003cplugin_name\u003e`, and `POST /api/plugins/validate`, relied on @swagger_route(security=get_auth_security()) documentation without enforcing @login_required, @user_required, or @admin_required at runtime, allowing unauthenticated or unauthorized clients to invoke plugin validation, health, and repair behavior. This issue is fixed in version 0.241.206.","status":"published","published":"2026-07-16T16:19:14.217Z","modified":"2026-10-24T20:10:00.137Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L","level":"high","assessor":"secondary"}],"cwes":["CWE-306","CWE-862"],"updated_at":"2026-11-02T14:12:30.250437Z"}],"osv":[{"id":"CVE-2026-57206","title":"SimpleChat plugin validation endpoints missing authentication and authorization","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.206, several plugin validation routes in application/single_app/plugin_validation_endpoint.py, including `POST /api/admin/plugins/test-instantiation`, `GET /api/admin/plugins/health-check/\u003cplugin_name\u003e`, `POST /api/admin/plugins/repair/\u003cplugin_name\u003e`, and `POST /api/plugins/validate`, relied on @swagger_route(security=get_auth_security()) documentation without enforcing @login_required, @user_required, or @admin_required at runtime, allowing unauthenticated or unauthorized clients to invoke plugin validation, health, and repair behavior. This issue is fixed in version 0.241.206.","status":"published","published":"2026-07-16T15:17:05.558Z","modified":"2026-10-28T02:30:41.098890144Z","cvss":[{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L","level":"high"}],"cwes":["CWE-306","CWE-862"],"updated_at":"2026-11-02T15:45:12.016252Z"}]}}