CVE-2026-41127 — MEDIUM (6.5)

Vulnerability Description

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.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

NONE

Related Weaknesses (CWE)

CWE-639

References

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-q387-2q2

FAQ

What is CVE-2026-41127?

CVE-2026-41127 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 wh...

How severe is CVE-2026-41127?

CVE-2026-41127 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-41127?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.