---
title: "CVE-2026-45568: rok Python ProxyShare can be used as an SSRF proxy through absolute URL paths"
url: https://erroneo.us/security/cve/CVE-2026-45568/
description: "CVE-2026-45568 (zrok (PyPI)): zrok is software for sharing web services, files, and network resources. Prior to 2.0.3, zrok's Python SDK ProxyShare Flask…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-07-16
date_modified: 2026-07-17
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-45568"
kev: false
cvss: 9.9
epss: 0.00544
license: All rights reserved. Quote with attribution and a link.
---

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

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.5% , percentile 45: FIRST’s model estimates a 0.5% chance of exploitation activity in the next 30 days, higher than 45% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes zrok (PyPI) >= 0.4.47, <= 1.1.11, no fixed version listed . Check your lockfile, including transitive dependencies.

## What it is

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 packages

- PyPI `zrok` >= 0.4.47, <= 1.1.11 → fixed: none listed

## Affected products (CVE record)

- openziti zrok: >= 0.4.47, < 2.0.3

## Severity

- GitHub_M CVSS 4.0: 9.9 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:L`
- GitHub CVSS 4.0: 9.9 `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:L`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.54% probability of exploitation activity in the next 30 days; percentile 45.

## Sources

- [GitHub Advisory GHSA-jh67-hwqw-m5r7](https://github.com/advisories/GHSA-jh67-hwqw-m5r7)
- [CVE.org record CVE-2026-45568](https://www.cve.org/CVERecord?id=CVE-2026-45568)
- [NVD entry CVE-2026-45568](https://nvd.nist.gov/vuln/detail/CVE-2026-45568)
- [github.com](https://github.com/openziti/zrok/security/advisories/GHSA-jh67-hwqw-m5r7)
- [github.com](https://github.com/openziti/zrok/commit/7c1dc3ecd1c89d8cd2e845a72c3878bd2d31b4fe)
- [github.com](https://github.com/openziti/zrok/releases/tag/v2.0.3)

---
Source page: https://erroneo.us/security/cve/CVE-2026-45568/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt