๐Ÿ” CVE Alert

CVE-2026-57206

HIGH 8.6

SimpleChat plugin validation endpoints missing authentication and authorization

CVSS Score
8.6
EPSS Score
0.0%
EPSS Percentile
0th

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/<plugin_name>`, `POST /api/admin/plugins/repair/<plugin_name>`, 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.

CWE CWE-306 CWE-862
Vendor microsoft
Product simplechat
Ecosystems
Industries
TechnologyEnterprise
Published Jul 16, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
Low

Affected Versions

microsoft / simplechat
< 0.241.206

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/microsoft/simplechat/security/advisories/GHSA-g6gr-xp46-hrmj github.com: https://github.com/microsoft/simplechat/blob/main/docs/explanation/fixes/PLUGIN_VALIDATION_ROUTE_AUTH_FIX.md github.com: https://github.com/microsoft/simplechat/releases/tag/v0.250.001