CVE-2026-45266

low

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.

References

https://hackerone.com/reports/3636758

https://github.com/nextcloud/spreed/pull/17577

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x75r-65hm-cw35

Details

Source: Mitre, NVD

Published: 2026-06-01

Updated: 2026-06-01

Risk Information

CVSS v2

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 3.5

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

Severity: Low

EPSS

EPSS: 0.00025