CVE-2026-45576CWE-22

zrok copy writes attacker-controlled WebDAV paths outside the destination root

High · published July 16, 2026

CVSS v4.0
8.3
EPSS
0%
Percentile
41.6
In the wild
Unconfirmed
What it is

zrok is software for sharing web services, files, and network resources. From 0.4.23 until 2.0.3, `zrok2 copy` stores attacker-controlled WebDAV or zrok drive paths such as /../outside.txt in the source inventory and passes them to FilesystemTarget.WriteStream, allowing the sync pipeline to write files outside the selected local filesystem destination root. This issue is fixed in version 2.0.3.

The record
Technical detail
CVSS v4.0
8.3 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N
EPSS
0.00496 · 41.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-07-16T16:45Z
EPSS history
Timeline
  • 16 JUL 16:45Z
    zrok copy writes attacker-controlled WebDAV paths outside the destination root
    cvelistv5