Vulnerability Description
Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.14, and 32.0.0 to before 32.0.4, if {lang} is used in the template directory config value, non-admin users can in some cases copy arbitrary files (depending on unix permissions) into their own Nextcloud directory via a path traversal. It is recommended that the Nextcloud Server is upgraded to 32.0.4, 31.0.14. It is recommended that the Nextcloud Enterprise Server is upgraded to 32.0.4, 31.0.14, 30.0.17.7, 29.0.17.12, 28.0.14.15
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nextcloud | Nextcloud Server | >= 31.0.0, < 31.0.14 |
Related Weaknesses (CWE)
References
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j33j-qMitigationVendor Advisory
- https://github.com/nextcloud/server/pull/57414/filesIssue TrackingPatch
- https://hackerone.com/reports/3468140Permissions Required
FAQ
What is CVE-2026-45279?
CVE-2026-45279 is a vulnerability with a CVSS score of 4.4 (MEDIUM). Nextcloud is an open source content collaboration platform. In Nextcloud Server from versions 31.0.0 to before 31.0.14, and 32.0.0 to before 32.0.4, if {lang} is used in the template directory config ...
How severe is CVE-2026-45279?
CVE-2026-45279 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45279?
Check the references section above for vendor advisories and patch information. Affected products include: Nextcloud Nextcloud Server.