Vulnerability · Published Jul 16, 2026 · Assigned by GitHub_M

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

Critical 9.9

In plain English

A critical-severity path traversal in zrok from openziti. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).

Severity (CVSS 4.0)9.9Critical

Exploit odds (30 days)0.5%top 54.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	zrok	no fix listed	GHSA-jh67-hwqw-m5r7
PyPI	zrok	no fix listed	PYSEC-2026-577

Affected products (as reported)

Vendor	Product	Versions
openziti	zrok	>= 0.4.47, < 2.0.3

Weakness: CWE-22 · Vector: 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

References

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