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CVE-2026-46556

CVE-2026-46556 · FlaskBB: SSRF in get_image_info() via unrestricted avatar URL

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 6.5 · Medium · EPSS 0.4%

Published
Updated

Stack: python

Affected products and versions

  • flaskbb

    Versions
    • < 2.2.1: Affected

    No fix published

  • flaskbb PyPI

    Versions
    • 2.0.0
    • 2.0.0.dev0
    • 2.0.1
    • 2.0.2
    • 2.2.0
    Affected ranges
    • ECOSYSTEM: ≤ 2.2.0

    No fix published

Original sources

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