CVE-2026-45279 Details
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
A path traversal vulnerability has been identified in Nextcloud Server versions 31.0.0 prior to 31.0.14 and 32.0.0 prior to 32.0.4. When the '{lang}' variable is used in the template directory configuration, non-admin users may exploit this issue to copy arbitrary files, depending on Unix permissions, into their own Nextcloud directory.
Users are advised to upgrade Nextcloud Server to version 32.0.4 or 31.0.14. Nextcloud Enterprise Server users should upgrade to version 32.0.4, 31.0.14, 30.0.17.7, 29.0.17.12, or 28.0.14.15.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 2, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j33j-qph5-4wch | [email protected] | MitigationVendor Advisory |
| https://github.com/nextcloud/server/pull/57414/files | [email protected] | Issue TrackingPatch |
| https://hackerone.com/reports/3468140 | [email protected] | Permissions Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| nextcloud nextcloud server | >= 31.0.0, < 31.0.14 >= 32.0.0, < 32.0.4 >= 28.0.0, < 28.0.14.15 >= 29.0.0, < 29.0.17.12 >= 30.0.0, < 30.0.17.7 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 3, 2026 | Initial Analysis | [email protected] |
| Jun 1, 2026 | New CVE Received | [email protected] |