High 8.7Published May 7, 2026

CVE-2026-42275zrok: WebDAV drive backend follows symlinks outside DriveRoot, enabling host filesystem read/write

Updated under an hour ago (Oct 27, 2026, 4:30 AM ET)

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It affects openziti zrok and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for openziti zrok

Exploited in the last 30 days

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: 8.7 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-61, CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: May 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

openziti zrok openziti:zrok (from the name)	before 2.0.2	CNA record
netfoundry zrok netfoundry:zrok	before 2.0.2	NVD

References

References

https://github.com/openziti/zrok/security/advisories/GHSA-74m3-9qvm-rp9h	x-refsource-confirm, vendor-advisory
https://github.com/openziti/zrok/commit/459bcfc1e121decae1b1d11c37ad94e4ed5bbf2e	x-refsource-misc, patch
https://github.com/openziti/zrok/releases/tag/v2.0.2	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.