Low 3.5Published Jun 1, 2026

CVE-2026-45266Nextcloud: Unauthorized force-mute from missing permission check when using internal signaling

Updated under an hour ago (Oct 26, 2026, 8:30 PM ET)

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It affects nextcloud security-advisories. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for nextcloud security-advisories

Exploited in the last 30 days

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.

CVSS: 3.5 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-284
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Jun 1, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nextcloud security-advisories nextcloud:security_advisories (from the name)	before 21.1.10; before 22.0.11; before 23.0.3	CNA record

References

References

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x75r-65hm-cw35	x-refsource-confirm
https://github.com/nextcloud/spreed/pull/17577	x-refsource-misc
https://hackerone.com/reports/3636758	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.