CVE-2026-45275Nextcloud: Authorization bypass in approval feature allows unauthorized file sharing with approvers

Beschreibung

Nextcloud is an open source content collaboration platform. Prior to version 2.7.2, a privilege escalation vulnerability exists in the Approval app that allows a user without sharing permissions to force the system to share a file with approvers. This results in an authorization bypass and privilege escalation, allowing unauthorized distribution of restricted files. This issue has been patched in version 2.7.2.

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-v8q8-w6c3-3gv9 MitigationVendor Advisory
• https://github.com/nextcloud/approval/pull/392 Issue TrackingPatch
• https://hackerone.com/reports/3593780 Permissions Required