What is CVE-2026-45568?

CVE-2026-45568 is a critical-severity vulnerability in Netfoundry Zrok, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-07-16.

How severe is CVE-2026-45568?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Path Traversal in Netfoundry Zrok

CVE-2026-45568

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.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2026-07-16 · last modified 2026-07-20.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.005 (44.9th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Netfoundry Zrok
Openziti Zrok — versions >= 0.4.47, < 2.0.3

Weakness classification (CWE)

CWE-22 — Path Traversal

References

github.com/openziti/zrok/security/advisories/GHSA-jh67-hwqw-m5r7 (Vendor Advisory)
github.com/openziti/zrok/commit/7c1dc3ecd1c89d8cd2e845a72c3878bd2d31b4fe (Patch)
github.com/openziti/zrok/releases/tag/v2.0.3 (Release Notes)

Frequently asked questions

What is CVE-2026-45568?: CVE-2026-45568 is a critical-severity vulnerability in Netfoundry Zrok, classified under Path Traversal. CVSS score: 9.1/10. Published 2026-07-16.
How severe is CVE-2026-45568?: Critical severity. CVSS v3 base score is 9.1 out of 10.