{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "source": "REFERENCES"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "ff8059163e09ede433003b1ed2822061c41239fe"
            }
          ],
          "repo": "https://github.com/microsoft/simplechat",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-x2jq-2m5m-65m4"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-200",
      "CWE-639",
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57205.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "fixed": "0.241.203"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "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.",
  "id": "CVE-2026-57205",
  "modified": "2026-07-18T03:42:07.317904753Z",
  "published": "2026-07-16T15:12:46.826Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/microsoft/simplechat/blob/main/docs/explanation/fixes/USER_PROFILE_IDOR_AUTHORIZATION_FIX.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/microsoft/simplechat/releases/tag/v0.250.001"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/57xxx/CVE-2026-57205.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/microsoft/simplechat/security/advisories/GHSA-x2jq-2m5m-65m4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57205"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "SimpleChat: Authenticated users can access other users' profile metadata through user IDOR endpoints"
}