PatchSiren cyber security CVE debrief
CVE-2026-45576 openziti CVE debrief
A high-severity vulnerability was discovered in zrok software, affecting versions from 0.4.23 to 2.0.3. The issue allows attackers to write files outside the selected local filesystem destination root via path traversal. This vulnerability exists in the `zrok2 copy` command, which stores attacker-controlled WebDAV or zrok drive paths and passes them to FilesystemTarget.WriteStream. This allows the sync pipeline to write files outside the selected local filesystem destination root. Users of zrok software, particularly those using versions between 0.4.23 and 2.0.3, should be aware of this vulnerability and take necessary precautions.
- Vendor
- openziti
- Product
- zrok
- CVSS
- HIGH 8.3
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-16
- Original CVE updated
- 2026-07-16
- Advisory published
- 2026-07-16
- Advisory updated
- 2026-07-16
Who should care
Users of zrok software, particularly those using versions between 0.4.23 and 2.0.3, should be aware of this vulnerability and take necessary precautions. This includes updating zrok software to version 2.0.3 or later, reviewing and restricting access to sensitive files and directories, and monitoring for suspicious activity related to zrok software.
Technical summary
The vulnerability exists in the `zrok2 copy` command, which stores attacker-controlled WebDAV or zrok drive paths and passes them to FilesystemTarget.WriteStream. This allows the sync pipeline to write files outside the selected local filesystem destination root. The issue is fixed in version 2.0.3. The CVE record was published on 2026-07-16T17:16:56.567Z and last modified on 2026-07-16T18:16:43.653Z.
Defensive priority
High priority should be given to updating zrok software to version 2.0.3 or later to mitigate this vulnerability.
Recommended defensive actions
- Update zrok software to version 2.0.3 or later
- Review and restrict access to sensitive files and directories
- Monitor for suspicious activity related to zrok software
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
The CVE record was published on 2026-07-16T17:16:56.567Z and last modified on 2026-07-16T18:16:43.653Z. The NVD entry is currently Undergoing Analysis. This information is based on the provided source corpus and may not reflect the current status. Users should verify the information with the official CVE record and NVD entry for the most up-to-date details.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-16T17:16:56.567Z and has not been modified since then. The NVD entry is currently Undergoing Analysis.