CVE-2026-41127 BigBlueButton's missing authorization allows viewer to inject/overwrite captions

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have a missing authorization that allows viewers to inject/overwrite captions Version 3.0.24 tightened the permissions on who is able to submit captions. No known workarounds are available...

CVE-2026-41126 BigBlueButton has Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL"

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL." Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds...

CVE-2026-41126 BigBlueButton has Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL"

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL." Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds...

CVE-2026-41126

BigBlueButton (open-source virtual classroom) vulnerable in versions prior to 3.0.24 to an Open Redirect via the join endpoint (bigbluebutton/api/join) using the logoutURL GET parameter. The root cause is the handling of requests with an incorrect checksum, after which the default logoutURL is us...

CVE-2026-41126

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL." Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds...

CVE-2026-41126

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL." Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds...

EUVD-2026-24563

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL." Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds...

CVE-2026-41126 BigBlueButton has Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL"

BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have an Open Redirect through bigbluebutton/api/join via get-parameter "logoutURL." Version 3.0.24 has adjusted the handling of requests with incorrect checksum so that the default logoutURL is used. No known workarounds...

PT-2026-34217

Name of the Vulnerable Software and Affected Versions BigBlueButton versions prior to 3.0.24 Description An open redirect exists in the 'bigbluebutton/api/join' endpoint through the logoutURL parameter. This occurs when requests with incorrect checksums are handled improperly, allowing a redirect...

PT-2026-34218

Name of the Vulnerable Software and Affected Versions BigBlueButton versions prior to 3.0.24 Description A missing authorization allows viewers to inject or overwrite captions. Recommendations Update to version 3.0.24...

CVE-2026-27736

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...

CVE-2026-27736

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...

CVE-2026-27736

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...

CVE-2026-27736

BigBlueButton Open Redirect CVE-2026-27736 affects the 3.x branch before version 3.0.20. The vulnerability arises because the errorRedirectUrl string is not validated and is used directly in respondWithRedirect, enabling an open redirect. The issue is fixed in BigBlueButton 3.0.20. No exploitatio...

EUVD-2026-8686

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...

CVE-2026-27736 BigBlueButton has Open Redirect vulnerability in ApiController

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...

CVE-2026-27736 BigBlueButton has Open Redirect vulnerability in ApiController

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...

CVE-2026-27736

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...

CVE-2026-27736 BigBlueButton has Open Redirect vulnerability in ApiController

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...

CVE-2026-27736: URL Redirection to Untrusted Site

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...