CVE-2026-42275
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
- 8.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-26)
- CWEs
- CWE-22, CWE-61
- Published
- Modified
- Record from
- the NVD, synced
Affected
- netfoundry:zrok
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-74m3-9qvm-rp9h | Go | github.com/openziti/zrok | <=1.1.11 | no fix published |
| GHSA-74m3-9qvm-rp9h | Go | github.com/openziti/zrok/v2 | <2.0.2 | 2.0.2 |
| GO-2026-5203 | Go | github.com/openziti/zrok | all versions | no fix published |
| GO-2026-5203 | Go | github.com/openziti/zrok/v2 | <2.0.2 | 2.0.2 |