# BigBlueButton vulnerabilities

Source: https://junglewise.ai/threats/technologies/bigbluebutton  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/bigbluebutton.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 8 vulnerabilities in BigBlueButton: 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-55491, was published on 20 August 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 4
- All time: 8 (0 critical, 0 exploited in the wild)

## About BigBlueButton

BigBlueButton is an open-source web conferencing system designed for online learning.

## Latest BigBlueButton vulnerabilities

- [CVE-2026-55491: BigBlueButton stored XSS in recording playback](https://junglewise.ai/threats/cve-2026-55491-bigbluebutton-stored-xss-in-recording-playback) (medium, CVSS 5.4, published 20 Aug 2026)
- [CVE-2026-55489: BigBlueButton presentation deletion authorization bypass](https://junglewise.ai/threats/cve-2026-55489-bigbluebutton-presentation-deletion-authorization-bypass) (medium, CVSS 4.9, published 20 Aug 2026)
- [CVE-2026-46682: BigBlueButton SQL injection in breakout room visibility query](https://junglewise.ai/threats/cve-2026-46682-bigbluebutton-sql-injection-in-breakout-room-visibility-query) (high, CVSS 8.5, published 20 Aug 2026)
- [CVE-2026-46355: BigBlueButton authentication bypass in API controller](https://junglewise.ai/threats/cve-2026-46355-bigbluebutton-authentication-bypass-in-api-controller) (high, CVSS 7.1, published 20 Aug 2026)
- [CVE-2026-46404: BigBlueButton SSRF in presentation URL validation](https://junglewise.ai/threats/cve-2026-46404-bigbluebutton-ssrf-in-presentation-url-validation) (medium, CVSS 6.8, published 16 Jul 2026)
- [CVE-2026-46353: BigBlueButton bbb-web checksum bypass in API request handling](https://junglewise.ai/threats/cve-2026-46353-bigbluebutton-bbb-web-checksum-bypass-in-api-request-handling) (high, CVSS 8.1, published 16 Jul 2026)
- [CVE-2026-46351: BigBlueButton insecure randomness in sessionToken generation](https://junglewise.ai/threats/cve-2026-46351-bigbluebutton-insecure-randomness-in-sessiontoken-generation) (high, CVSS 8.1, published 16 Jul 2026)
- [CVE-2026-27737: BigBlueButton stored XSS in recording playback chat](https://junglewise.ai/threats/cve-2026-27737-bigbluebutton-stored-xss-in-recording-playback-chat) (medium, CVSS 6.5, published 18 May 2026)

## Most severe BigBlueButton vulnerabilities

- [CVE-2026-46682: BigBlueButton SQL injection in breakout room visibility query](https://junglewise.ai/threats/cve-2026-46682-bigbluebutton-sql-injection-in-breakout-room-visibility-query) (high, CVSS 8.5, published 20 Aug 2026)
- [CVE-2026-46353: BigBlueButton bbb-web checksum bypass in API request handling](https://junglewise.ai/threats/cve-2026-46353-bigbluebutton-bbb-web-checksum-bypass-in-api-request-handling) (high, CVSS 8.1, published 16 Jul 2026)
- [CVE-2026-46351: BigBlueButton insecure randomness in sessionToken generation](https://junglewise.ai/threats/cve-2026-46351-bigbluebutton-insecure-randomness-in-sessiontoken-generation) (high, CVSS 8.1, published 16 Jul 2026)
- [CVE-2026-46355: BigBlueButton authentication bypass in API controller](https://junglewise.ai/threats/cve-2026-46355-bigbluebutton-authentication-bypass-in-api-controller) (high, CVSS 7.1, published 20 Aug 2026)
- [CVE-2026-46404: BigBlueButton SSRF in presentation URL validation](https://junglewise.ai/threats/cve-2026-46404-bigbluebutton-ssrf-in-presentation-url-validation) (medium, CVSS 6.8, published 16 Jul 2026)
- [CVE-2026-27737: BigBlueButton stored XSS in recording playback chat](https://junglewise.ai/threats/cve-2026-27737-bigbluebutton-stored-xss-in-recording-playback-chat) (medium, CVSS 6.5, published 18 May 2026)
- [CVE-2026-55491: BigBlueButton stored XSS in recording playback](https://junglewise.ai/threats/cve-2026-55491-bigbluebutton-stored-xss-in-recording-playback) (medium, CVSS 5.4, published 20 Aug 2026)
- [CVE-2026-55489: BigBlueButton presentation deletion authorization bypass](https://junglewise.ai/threats/cve-2026-55489-bigbluebutton-presentation-deletion-authorization-bypass) (medium, CVSS 4.9, published 20 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 4 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "BigBlueButton vulnerabilities", https://junglewise.ai/threats/technologies/bigbluebutton, 9 November 2026.