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CVE-2026-42275

8.7 · HIGH

zrok is software for sharing web services, files, and network resources.

Published May 8, 2026CWE-22EPSS 0.46%

Overview

CVE-2026-42275 is a high-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 8.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.7, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/openziti/zrok/commit/459bcfc1e121decae1b1d11c37ad94e4ed5bbf2eGitHubgithub.com/openziti/zrok/releases/tag/v2.0.2GitHubgithub.com/openziti/zrok/security/advisories/GHSA-74m3-9qvm-rp9h

How CyberStrike helps

Frequently asked questions

What is CVE-2026-42275?

CVE-2026-42275 is a high-severity vulnerability. It was published on May 8, 2026 and has a CVSS 3.1 base score of 8.7 (HIGH).

How severe is CVE-2026-42275?

This vulnerability has a CVSS 3.1 base score of 8.7, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-42275?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-42275?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-42275 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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