CVE-2026-41127: medium-severity vulnerability in bigbluebutton
BigBlueButton's missing authorization allows viewer to inject/overwrite captions
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.2%
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:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Affected products
bigbluebutton · bigbluebuttonRelated CVEs — bigbluebutton
In the same product, most dangerous first.
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