CVE-2026-45568
Critical
Description
zrok is software for sharing web services, files, and network resources. Prior to 2.0.3, zrok's Python SDK ProxyShare Flask proxy route accepts an absolute URL in the request path and passes it to urllib.parse.urljoin, allowing the requested path to replace the configured target host and causing requests.request to return a server-side response from an attacker-chosen URL. This issue is fixed in version 2.0.3.
SeverityCritical
CVSS9.1
Exploit probability—
ProductNetfoundry Zrok
PublishedJul 16, 2026
First seenJul 16, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- netfoundry zrok2.0.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| netfoundry zrok | 0.4.47 ≤ v < 2.0.3 | 2.0.3 |
| zrokPyPI | 0.4.47 ≤ v ≤ 1.1.11 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.