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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.

PUBLISHED Reserved 2026-05-11 | Published 2026-06-01 | Updated 2026-06-01 | Assigner GitHub_M




LOW: 3.5CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

Problem types

CWE-284: Improper Access Control

Product status

< 21.1.10
affected

< 22.0.11
affected

< 23.0.3
affected

References

github.com/...sories/security/advisories/GHSA-x75r-65hm-cw35

github.com/nextcloud/spreed/pull/17577

hackerone.com/reports/3636758

cve.org (CVE-2026-45266)

nvd.nist.gov (CVE-2026-45266)

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