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Vulnerability record · CVE-2026-42275 · published 8 May 2026

CVE-2026-42275: Netfoundry zrok path traversal vulnerability

Netfoundry · Zrok

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.2, the zrok WebDAV drive backend (davServer.Dir) restricts path traversal through lexical normalization but does not prevent symlink following. When a symbolic link inside the shared DriveRoot points to a location outside that root, remote WebDAV consumers can read files and—on shares without OS-level permission restrictions—write or overwrite files anywhere on the host filesystem accessible to the zrok process. This issue has been patched in version 2.0.2.

8.7 CVSS 3.1 High EPSS 0.46% · top 62.7% CWE-22 · Path traversalCWE-61 · CWE-61
8.7CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
17 Jun 2026Last modified by NVD

Description

zrok is software for sharing web services, files, and network resources. Prior to version 2.0.2, the zrok WebDAV drive backend (davServer.Dir) restricts path traversal through lexical normalization but does not prevent symlink following. When a symbolic link inside the shared DriveRoot points to a location outside that root, remote WebDAV consumers can read files and—on shares without OS-level permission restrictions—write or overwrite files anywhere on the host filesystem accessible to the zrok process. This issue has been patched in version 2.0.2.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/openziti/zrok/commit/459bcfc1e121decae1b1d11c37ad94e4ed5bbf2e Patch
https://github.com/openziti/zrok/releases/tag/v2.0.2 ProductRelease Notes
https://github.com/openziti/zrok/security/advisories/GHSA-74m3-9qvm-rp9h Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-42275), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.