SB2026022021 - Information disclosure in BigBlueButton
Published: February 20, 2026
Security Bulletin ID
SB2026022021
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2026-27467)
The vulnerability allows a remote user to gain access to potentially sensitive information.
The vulnerability exists due to the client sends audio to the server when first joining a session even with the microphone muted. A remote administrator can gain unauthorized access to sensitive information on the system.
Remediation
Install update from vendor's website.