[CVE-2026-46351] BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web generated conference ses…

Descripción técnica

BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web generated conference sessionToken values with insufficiently secure randomness in bbb-common-web/src/main/java/org/bigbluebutton/api/Util.java and bigbluebutton-web/grails-app/controllers/org/bigbluebutton/web/controllers/ApiController.groovy, allowing a session user to predict other users' conference session tokens and impersonate them. This issue is fixed in version 3.0.21.

Puntuación CVSS

Score: 8.1/10 — Severidad: HIGH — Estado NIST: Deferred

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

Debilidades (CWE)

CWE-330

Fuente oficial

Publicado en NIST NVD.