CVE-2026-42275: CWE-61: UNIX Symbolic Link (Symlink) Following in openziti zrok
CVE-2026-42275 is a high-severity vulnerability in openziti zrok prior to version 2.0.2. The zrok WebDAV drive backend improperly handles symbolic links, allowing remote WebDAV clients to access files outside the intended shared directory. This occurs because while path traversal is restricted via lexical normalization, symlink following is not prevented. As a result, attackers can read and potentially write or overwrite files anywhere accessible to the zrok process if OS-level permissions are not restrictive. The issue has been addressed in version 2.0.2.
AI Analysis
Technical Summary
The vulnerability in openziti zrok's WebDAV drive backend (davServer.Dir) allows symbolic links within the shared DriveRoot to point outside the root directory. Remote WebDAV consumers can exploit this to read or modify files outside the intended share boundary. This is due to the backend restricting path traversal lexically but not preventing symlink following, leading to a security bypass. The vulnerability affects all versions prior to 2.0.2 and has a CVSS 3.1 score of 8.7, indicating high severity. The issue has been patched in version 2.0.2.
Potential Impact
Exploitation allows unauthorized remote WebDAV clients to read files outside the shared directory and, on shares without OS-level permission restrictions, write or overwrite arbitrary files accessible to the zrok process. This can lead to confidentiality and integrity violations of the host filesystem. There is no indication of availability impact. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix is available in openziti zrok version 2.0.2. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation guidance is provided or required beyond applying the official patch.
CVE-2026-42275: CWE-61: UNIX Symbolic Link (Symlink) Following in openziti zrok
Description
CVE-2026-42275 is a high-severity vulnerability in openziti zrok prior to version 2.0.2. The zrok WebDAV drive backend improperly handles symbolic links, allowing remote WebDAV clients to access files outside the intended shared directory. This occurs because while path traversal is restricted via lexical normalization, symlink following is not prevented. As a result, attackers can read and potentially write or overwrite files anywhere accessible to the zrok process if OS-level permissions are not restrictive. The issue has been addressed in version 2.0.2.
CVSS v3.1
Score 8.7high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in openziti zrok's WebDAV drive backend (davServer.Dir) allows symbolic links within the shared DriveRoot to point outside the root directory. Remote WebDAV consumers can exploit this to read or modify files outside the intended share boundary. This is due to the backend restricting path traversal lexically but not preventing symlink following, leading to a security bypass. The vulnerability affects all versions prior to 2.0.2 and has a CVSS 3.1 score of 8.7, indicating high severity. The issue has been patched in version 2.0.2.
Potential Impact
Exploitation allows unauthorized remote WebDAV clients to read files outside the shared directory and, on shares without OS-level permission restrictions, write or overwrite arbitrary files accessible to the zrok process. This can lead to confidentiality and integrity violations of the host filesystem. There is no indication of availability impact. No known exploits in the wild have been reported.
Mitigation Recommendations
A fix is available in openziti zrok version 2.0.2. Users should upgrade to this version or later to remediate the vulnerability. No additional mitigation guidance is provided or required beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-04-26T11:53:27.708Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69fd5dc1cbff5d86108b649e
Added to database: 05/08/2026, 03:51:29 UTC
Last enriched: 05/15/2026, 11:02:26 UTC
Last updated: 06/23/2026, 14:09:12 UTC
Views: 54
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