CVE-2026-27736

Published February 25th, 2026

View on NVD ↗

CVSS v3

6.1

MEDIUM

CVSS v2

N/A

Affected

PROJECT

Description

BigBlueButton is an open-source virtual classroom. In versions on the 3.x branch prior to 3.0.20, the string received with errorRedirectUrl lacks validation, using it directly in the respondWithRedirect function leads to an Open Redirect vulnerability. BigBlueButton 3.0.20 patches the issue. No known workarounds are available.

bigbluebutton/bigbluebutton

A complete web conferencing system for virtual classes and more!

GitHub

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