CVE-2026-46556

Summary

FlaskBB is a Forum Software written in Python using the micro framework Flask. Prior to version 2.2.1, a Server-Side Request Forgery (SSRF) vulnerability in get_image_info() allows any authenticated user to force the server to send HTTP requests to arbitrary internal endpoints, including cloud metadata services. This is a blind SSRF with confirmed internal port scanning and internal API triggering capabilities. Version 2.2.1 patches the issue.

Affected Software

VendorProductVersion RangeStatus
flaskbbflaskbb< 2.2.1affected

Weaknesses

  • CWE-918: CWE-918: Server-Side Request Forgery (SSRF)

References