{"id":"CVE-2026-57205","aliases":["EUVD-2026-44941","GHSA-x2jq-2m5m-65m4"],"status":"published","title":"SimpleChat: Authenticated users can access other users' profile metadata through user IDOR endpoints","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.203, the authenticated GET /api/user/info/\u003cuser_id\u003e and GET /api/user/profile-image/\u003cuser_id\u003e endpoints in application/single_app/route_backend_users.py accepted a caller-supplied user_id and read the matching Cosmos DB user-settings document without object-level authorization, allowing a low-privilege authenticated user to retrieve another user's email address, display name, and profile image. This issue is fixed in version 0.241.203.","severity":{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00911,"percentile":0.60311,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200","CWE-639","CWE-862"],"published":"2026-07-16T15:12:46Z","modified":"2026-10-28T02:31:00Z","products":[{"vendor":"microsoft","product":"simplechat"}],"references":[{"url":"https://github.com/microsoft/simplechat/security/advisories/GHSA-x2jq-2m5m-65m4","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/microsoft/simplechat/blob/main/docs/explanation/fixes/USER_PROFILE_IDOR_AUTHORIZATION_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-2026-57205.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57205","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-57205","title":"SimpleChat: Authenticated users can access other users' profile metadata through user IDOR endpoints","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.203, the authenticated GET /api/user/info/\u003cuser_id\u003e and GET /api/user/profile-image/\u003cuser_id\u003e endpoints in application/single_app/route_backend_users.py accepted a caller-supplied user_id and read the matching Cosmos DB user-settings document without object-level authorization, allowing a low-privilege authenticated user to retrieve another user's email address, display name, and profile image. This issue is fixed in version 0.241.203.","status":"published","published":"2026-07-16T15:12:46.826Z","modified":"2026-07-16T15:25:26.441Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200","CWE-639","CWE-862"],"updated_at":"2026-11-02T13:43:56.024247Z"}],"euvd":[{"id":"EUVD-2026-44941","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.203, the authenticated GET /api/user/info/\u003cuser_id\u003e and GET /api/user/profile-image/\u003cuser_id\u003e endpoints in application/single_app/route_backend_users.py accepted a caller-supplied user_id and read the matching Cosmos DB user-settings document without object-level authorization, allowing a low-privilege authenticated user to retrieve another user's email address, display name, and profile image. This issue is fixed in version 0.241.203.","status":"published","published":"2026-07-16T15:12:46Z","modified":"2026-07-16T15:25:26Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T18:19:51.364603Z"}],"nvd":[{"id":"CVE-2026-57205","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.203, the authenticated GET /api/user/info/\u003cuser_id\u003e and GET /api/user/profile-image/\u003cuser_id\u003e endpoints in application/single_app/route_backend_users.py accepted a caller-supplied user_id and read the matching Cosmos DB user-settings document without object-level authorization, allowing a low-privilege authenticated user to retrieve another user's email address, display name, and profile image. This issue is fixed in version 0.241.203.","status":"published","published":"2026-07-16T16:19:14.05Z","modified":"2026-10-24T20:10:00.137Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-200","CWE-639","CWE-862"],"updated_at":"2026-11-02T14:12:30.250437Z"}],"osv":[{"id":"CVE-2026-57205","title":"SimpleChat: Authenticated users can access other users' profile metadata through user IDOR endpoints","description":"SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.203, the authenticated GET /api/user/info/\u003cuser_id\u003e and GET /api/user/profile-image/\u003cuser_id\u003e endpoints in application/single_app/route_backend_users.py accepted a caller-supplied user_id and read the matching Cosmos DB user-settings document without object-level authorization, allowing a low-privilege authenticated user to retrieve another user's email address, display name, and profile image. This issue is fixed in version 0.241.203.","status":"published","published":"2026-07-16T15:12:46.826Z","modified":"2026-10-28T02:31:00.991274546Z","cvss":[{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200","CWE-639","CWE-862"],"updated_at":"2026-11-02T15:45:12.016252Z"}]}}