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CVE-2026-45576— zrok copy writes attacker-controlled WebDAV paths outside the destination root

Quick assessment

Affected
openziti zrok
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenZiti zrok是OpenZiti组织开源的一个安全的互联网共享工具。 OpenZiti zrok 0.4.23版本至2.0.3之前版本存在路径遍历漏洞，该漏洞源于zrok2 copy路径处理不当，可能导致攻击者控制WebDAV或zrok drive路径进行路径遍历。

AI Predicted 7.5 Difficulty: Moderate EPSS 0.50% · P41

Possible ATT&CK Techniques 1 AI

T1564.001 · Hidden Files and Directories

Affected Version Matrix 1

VendorProduct Version RangeStatus
openziti zrok >= 0.4.23, < 2.0.3 affected
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I. Basic Information for CVE-2026-45576

Vulnerability Information
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Vulnerability Title
zrok copy writes attacker-controlled WebDAV paths outside the destination root
Source: CVE Program / CVE List V5
Vulnerability Description
zrok is software for sharing web services, files, and network resources. From 0.4.23 until 2.0.3, `zrok2 copy` stores attacker-controlled WebDAV or zrok drive paths such as /../outside.txt in the source inventory and passes them to FilesystemTarget.WriteStream, allowing the sync pipeline to write files outside the selected local filesystem destination root. This issue is fixed in version 2.0.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
OpenZiti zrok 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenZiti zrok是OpenZiti组织开源的一个安全的互联网共享工具。 OpenZiti zrok 0.4.23版本至2.0.3之前版本存在路径遍历漏洞，该漏洞源于zrok2 copy路径处理不当，可能导致攻击者控制WebDAV或zrok drive路径进行路径遍历。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openziti zrok >= 0.4.23, < 2.0.3 -

II. Public POCs for CVE-2026-45576

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III. Intelligence Information for CVE-2026-45576

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Vendor Advisories for CVE-2026-45576 (1)

Vendor Pages for CVE-2026-45576 (1)

IV. Related Vulnerabilities

Same product: zrok
Same vendor: openziti
Same weakness: CWE-22

V. Comments for CVE-2026-45576

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