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CVE PROGRAM SOURCE RECORD6.1 Medium

CVE-2026-27736

BigBlueButton has Open Redirect vulnerability in ApiController

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

bigbluebutton bigbluebutton

  • >= 3.0.0, < 3.0.20affected

References