CVE-2026-27467

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Source
https://cve.org/CVERecord?id=CVE-2026-27467
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27467.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-27467
Aliases
  • GHSA-6gj9-5rhm-68j8
Published
2026-02-21T07:18:26.156Z
Modified
2026-02-25T02:36:51.193968Z
Severity
  • 2.0 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N CVSS Calculator
Summary
BigBlueButton: Audio from participants to the server initially unmuted
Details

BigBlueButton is an open-source virtual classroom. In versions 3.0.19 and below, when first joining a session with the microphone muted, the client sends audio to the server regardless of mute state. Media is discarded at the server side, so it isn't audible to any participants, but this may allow for malicious server operators to access audio data. The behavior is only incorrect between joining the meeting and the first time the user unmutes. This issue has been fixed in version 3.0.20.

Database specific 
{
    "cwe_ids": [
        "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27467.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/bigbluebutton/bigbluebutton

Affected ranges

Type
GIT
Repo
https://github.com/bigbluebutton/bigbluebutton
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
4dc60c558106620f11c51df0c46ba617de86c6a7

Affected versions

0.*
0.81-dev-deskshare-fixes-compatible-with-0.8
2.*
2.2-beta-10
2.2-beta-11
2.2-beta-12
2.2-beta-14
2.2-beta-15
2.2-beta-16
2.2-beta-17
2.2-beta-18
2.2-beta-19
2.2-beta-2
2.2-beta-20
2.2-beta-21
2.2-beta-22
2.2-beta-23
2.2-beta-3
2.2-beta-4
2.2-beta-5
2.2-beta-6
2.2-beta-7
2.2-beta-8
2.2-beta-9
2.2-rc-1
2.2-rc-2
2.2-rc-3
2.2-rc-4
2.2-rc-5
2.2-rc-6
2.4-rc-2
2.5.0-rc.3
3.*
3.0.0-rc.1
Other
dcs-2-a
pre-recording-merge
v0.*
v0.7
v0.71
v0.71a
v0.8
v0.81
v0.81b
v0.81rc
v0.81rc2
v0.81rc3
v0.81rc4
v0.81rc5
v0.8b4
v0.8b4.0
v0.8rc2
v0.9.0-beta
v0.9.1
v0.9.2
v1.*
v1.0.0
v1.1.0
v2.*
v2.0-rc2
v2.0-rc3
v2.0-rc4
v2.0-rc5
v2.0-rc6
v2.0-rc7
v2.0.x-html5-beta1
v2.2.0
v2.2.1
v2.2.10
v2.2.11-good
v2.2.12
v2.2.14
v2.2.15
v2.2.16
v2.2.17
v2.2.18
v2.2.19
v2.2.2
v2.2.20
v2.2.21
v2.2.22
v2.2.23
v2.2.24
v2.2.25
v2.2.26
v2.2.27
v2.2.28
v2.2.29
v2.2.3
v2.2.30
v2.2.31
v2.2.32
v2.2.33
v2.2.34
v2.2.35
v2.2.36
v2.2.4
v2.2.5
v2.2.6
v2.2.7
v2.2.8
v2.2.9
v2.3-alpha-1
v2.3-alpha-2
v2.3-alpha-3
v2.3-alpha-4
v2.3-alpha-5
v2.3-alpha-6
v2.3-alpha-7
v2.3-alpha-8
v2.3-beta-1
v2.3-beta-2
v2.3-beta-3
v2.3-beta-4
v2.3-beta-5
v2.3-rc-1
v2.3-rc-2
v2.3.0
v2.3.1
v2.3.10
v2.3.11
v2.3.12
v2.3.13
v2.3.14
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.3.6
v2.3.7
v2.3.8
v2.3.9
v2.4-alpha-1
v2.4-alpha-2
v2.4-beta-1
v2.4-beta-2
v2.4-beta-3
v2.4-beta-4
v2.4-rc-1
v2.4-rc-3
v2.4-rc-4
v2.4-rc-5
v2.4-rc-6
v2.4-rc-7
v2.4.0
v2.4.1
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.5-alpha-1
v2.5-alpha-2
v2.5-alpha-3
v2.5-alpha-4
v2.5.0
v2.5.0-alpha.5
v2.5.0-alpha.6
v2.5.0-beta.1
v2.5.0-beta.2
v2.5.0-rc.1
v2.5.0-rc.2
v2.5.0-rc.4
v2.5.1
v2.5.10
v2.5.11
v2.5.2
v2.5.3
v2.5.4
v2.5.5
v2.5.6
v2.5.7
v2.5.8
v2.5.9
v2.6.0
v2.6.0-alpha.1
v2.6.0-alpha.2
v2.6.0-alpha.3
v2.6.0-alpha.4
v2.6.0-beta.1
v2.6.0-beta.2
v2.6.0-beta.3
v2.6.0-beta.4
v2.6.0-beta.5
v2.6.0-beta.6
v2.6.0-beta.7
v2.6.0-rc.1
v2.6.0-rc.2
v2.6.0-rc.3
v2.6.0-rc.4
v2.6.0-rc.5
v2.6.0-rc.6
v2.6.0-rc.7
v2.6.0-rc.8
v2.6.0-rc.9
v2.6.1
v2.6.10
v2.6.11
v2.6.12
v2.6.14
v2.6.2
v2.6.3
v2.6.4
v2.6.5
v2.6.6
v2.6.7
v2.6.8
v2.6.9
v2.7.0
v2.7.0-alpha.1
v2.7.0-alpha.2
v2.7.0-alpha.3
v2.7.0-beta.1
v2.7.0-beta.2
v2.7.0-beta.3
v2.7.0-rc.1
v2.7.0-rc.2
v2.7.1
v3.*
v3.0.0
v3.0.0-alpha.1
v3.0.0-alpha.2
v3.0.0-alpha.3
v3.0.0-alpha.4
v3.0.0-alpha.6
v3.0.0-alpha.7
v3.0.0-beta.1
v3.0.0-beta.2
v3.0.0-beta.3
v3.0.0-beta.4
v3.0.0-beta.5
v3.0.0-beta.6
v3.0.0-beta.7
v3.0.0-rc.1
v3.0.0-rc.2
v3.0.0-rc.3
v3.0.0-rc.4
v3.0.1
v3.0.10
v3.0.11
v3.0.12
v3.0.13
v3.0.14
v3.0.15
v3.0.16
v3.0.17
v3.0.18
v3.0.19
v3.0.2
v3.0.3
v3.0.4
v3.0.5
v3.0.7
v3.0.8
v3.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-27467.json"