CVE-2026-45576
HIGH
8.3
CVSS 4.0
Description
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.
Metadata
Severity & Metrics
8.3
HIGH CVSS 4.0
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
SSVC — CISA Coordinator
Affected products (1)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| openziti | zrok | — | >= 0.4.23, < 2.0.3 |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-22 | cna | CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 8.3 | HIGH | 4.0 | cna | 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 |
References (3)
- https://github.com/openziti/zrok/security/advisories/GHSA-c656-jcx2-7pqj https://github.com/openziti/zrok/security/advisories/GHSA-c656-jcx2-7pqj
- https://github.com/openziti/zrok/commit/a5811e61589d2f804267c6de4a9056db1bdea457 https://github.com/openziti/zrok/commit/a5811e61589d2f804267c6de4a9056db1bdea457
- https://github.com/openziti/zrok/releases/tag/v2.0.3 https://github.com/openziti/zrok/releases/tag/v2.0.3