CVE-2026-45266

Nextcloud: Unauthorized force-mute from missing permission check when using internal signaling

Published Jun 1, 2026 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Description
Nextcloud is an open source content collaboration platform. Prior to versions 21.1.10, 22.0.11, and 23.0.3, a low-privileged user can force other user's microphones to be muted in calls when no High-performance Backend is installed. This issue has been patched in versions 21.1.10, 22.0.11, and 23.0.3.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Nextcloud
Nextcloud spreed
Vendors & Products Nextcloud
Nextcloud spreed
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Nextcloud is an open source content collaboration platform. Prior to versions 21.1.10, 22.0.11, and 23.0.3, a low-privileged user can force other user's microphones to be muted in calls when no High-performance Backend is installed. This issue has been patched in versions 21.1.10, 22.0.11, and 23.0.3.
Title Nextcloud: Unauthorized force-mute from missing permission check when using internal signaling
Weaknesses CWE-284
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 1, 2026, 5:40 PM
Reserved
May 11, 2026, 6:41 PM
Status
Deferred
Published
Jun 1, 2026, 5:17 PM
Modified
Jul 22, 2026, 7:10 AM