Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2026-45576
Summary
zrok contains a Path Traversal vulnerability in the sync pipeline when copying files from a WebDAV or zrok-backed source to a local filesystem target. A malicious remote share can return crafted file paths containing directory traversal sequences (e.g. ../), which are improperly joined with the local destination path, allowing arbitrary file overwrite outside the intended target directory with the privileges of the local user. This issue affects zrok versions from 0.4.23 through 1.1.11 and 2.x prior to 2.0.3.
- LOW
- NETWORK
- ACTIVE
- NONE
CWE-22 - Path Traversal
Path traversal (or directory traversal), is a vulnerability that allows malicious users to traverse the server's root directory, gaining access to arbitrary files and folders such as application code & data, back-end credentials, and sensitive operating system files. In the worst-case scenario, an attacker could potentially execute arbitrary files on the server, resulting in a denial of service attack. Such an exploit may severely impact the integrity, confidentiality, and availability of an application.
References
Advisory Timeline
- Published
