CVE-2026-46351Disclosure

LOWCVSS 8.1 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-330

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-16: 2Technical Details · 2026-07-16: 207-16
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-46351 BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web generated conference sessionToken values with insufficiently secure randomness in bbb-comm… https://www.cve.org/CVERecord?id=CVE-2026-46351 ----- Traducción: CVE-2026-46351 Big… http://infoflow.cloud`

    Post summary

    CVE‑2026‑46351 targets BigBlueButton versions prior to 3.0.21, where insecure random generation of sessionToken values could allow attackers to hijack conferences. The notice serves as a disclosure of the weakness without any PoC, exploit, or mitigation details.

    0000034
    92 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-46351 BigBlueButton is an open-source virtual classroom. Prior to 3.0.21, bbb-web generated conference sessionToken values with insufficiently secure randomness in bbb-comm… https://www.cve.org/CVERecord?id=CVE-2026-46351

    Post summary

    CVE-2026-46351 reveals weak randomness in BigBlueButton's sessionToken generation; the disclosure provides technical details but no PoC, exploit, patch, or evidence of active exploitation.

    00000670
    57.8K followersView on X

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