CVE-2026-45279

[CVE catalog]

Severity

Medium · CVSS 5.3CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Published

May 11, 2026, 10:00:00 PM UTC

Source

[NVD] · [CVE record]

EPSS

0.39% · Oct 25, 2026

A flaw was found in Nextcloud Server. This vulnerability allows non-admin users to perform a path traversal when the `{lang}` variable is used in the template directory configuration. An attacker can exploit this to copy arbitrary files, subject to existing Unix permissions, into their own Nextcloud directory. This could lead to unauthorized file access and potential information disclosure. Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.