Path Traversal in Nextcloud Nextcloud_server
CVE-2026-45279
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 case…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.000 (12.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Nextcloud Nextcloud_server
- Nextcloud Security-advisories — versions >= 31.0.0, < 31.0.14, >= 32.0.0, < 32.0.4
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Permissions Required, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-45279?
- CVE-2026-45279 is a medium-severity vulnerability in Nextcloud Nextcloud_server, classified under Path Traversal. CVSS score: 4.4/10. Published 2026-06-01.
- How severe is CVE-2026-45279?
- Medium severity. CVSS v3 base score is 4.4 out of 10.