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CVE Vulnerability Details :
CVE-2026-45266
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-01 Jun, 2026 | 16:39
Updated At-01 Jun, 2026 | 17:40
Rejected At-
▼CVE Numbering Authority (CNA)
Nextcloud: Unauthorized force-mute from missing permission check when using internal signaling

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.

Affected Products
Vendor
Nextcloud GmbHnextcloud
Product
security-advisories
Versions
Affected
  • < 21.1.10
  • < 22.0.11
  • < 23.0.3
Problem Types
TypeCWE IDDescription
CWECWE-284CWE-284: Improper Access Control
Type: CWE
CWE ID: CWE-284
Description: CWE-284: Improper Access Control
Metrics
VersionBase scoreBase severityVector
3.13.5LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Version: 3.1
Base score: 3.5
Base severity: LOW
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
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
Hyperlink: https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x75r-65hm-cw35
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/nextcloud/spreed/pull/17577
Resource:
x_refsource_MISC
Hyperlink: https://hackerone.com/reports/3636758
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found