CVE-2026-45568

CRITICAL

zrok Python ProxyShare can be used as an SSRF proxy through absolute URL paths

Title source: cna
STIX 2.1

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.

References (3)

Core 3

Scores

CVSS v3 9.1
EPSS 0.0036
EPSS Percentile 28.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-22
Status published
Products (2)
netfoundry/zrok 0.4.47 - 2.0.3
openziti/zrok >= 0.4.47, < 2.0.3
Published Jul 16, 2026
Tracked Since Jul 16, 2026