What’s Vulnerable › Vulnerabilities

CVE-2026-45568: zrok Python ProxyShare can be used as an SSRF proxy through absolute URL paths

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-16 · updated 2026-10-24
• Weakness: CWE-22

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.

Affected products

• openziti zrok: from 0.4.47 before 2.0.3 — fixed in 2.0.3

How to fix

Upgrade to a fixed version: openziti zrok 2.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/openziti/zrok/commit/7c1dc3ecd1c89d8cd2e845a72c3878bd2d31b4fe
• https://github.com/openziti/zrok/releases/tag/v2.0.3
• https://github.com/openziti/zrok/security/advisories/GHSA-jh67-hwqw-m5r7

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