Missing Authorization in BigBlueButton - #VU150174
Published: September 16, 2026
Vulnerability identifier: #VU150174
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to missing authorization checks when joining a voice bridge. A remote user can join the audio bridge of another meeting, allowing them to listen to and speak in the meeting.
Affected software
BigBlueButton
Remediation
Install updates from vendor's website.
BigBlueButton - update to 3.0.37