CVE-2026-45279

Severity CVSS v4.0:

Pending analysis

Type:

CWE-22 Path Traversal

Publication date:

01/06/2026

Last modified:

03/06/2026

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

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

Base Score 3.x

4.40

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:nextcloud:nextcloud_server:::::-:::*	31.0.0 (including)	31.0.14 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:::::-:::*	32.0.0 (including)	32.0.4 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:::::enterprise:::*	28.0.0 (including)	28.0.14.15 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:::::enterprise:::*	29.0.0 (including)	29.0.17.12 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:::::enterprise:::*	30.0.0 (including)	30.0.17.7 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:::::enterprise:::*	31.0.0 (including)	31.0.14 (excluding)
cpe:2.3:a:nextcloud:nextcloud_server:::::enterprise:::*	32.0.0 (including)	32.0.4 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-45279

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools