Vulnerability Intelligence Report
SimpleChat: Authenticated users can access other users' profile metadata through user IDOR endpoints
CVE-2026-57205
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/<user_id> and GET /api/user/profile-image/<user_id> 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.
Information Disclosure
No Active Exploit Signals
CVSS Base Score
4.3
MEDIUM
Exploitability:2.9
Impact Score:1.5
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
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SSVC Action
—
Weaknesses (CWE)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| microsoft | simplechat | < 0.241.203 (affected) |
Threat Intelligence Signals
Vulnerability Class
Information Disclosure
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-06-24T02:00:46 |
| Published | 2026-07-16T15:12:46 |
| Last Updated | 2026-07-16T15:25:26 |
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