CVE-2026-45275
Nextcloud: Authorization bypass in approval feature allows unauthorized file sharing with approvers
- State
- Published
- Severity
- 6.5 Medium
- Published
- Jun 1, 2026
- Updated
- Jun 1, 2026
- Reserved
- May 11, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.5 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N | GitHub_M |
Weaknesses
- CWE-285 Improper Authorization
Affected Products
| Product | Versions |
|---|---|
security-advisoriesnextcloud |
|
References
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