Vulnerability · Published Aug 11, 2026 · Assigned by rapid7
CVE-2026-18640Velociraptor directory traversal via the NewNotebook API
High 7.1
In plain English
A high-severity path traversal in Velociraptor from Rapid7. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Official description
The NewNotebook API does not sufficiently sanitize its parameters allowing an authenticated user with NOTEBOOK_EDIT permission to write the notebook record outside the org's data store directory. The file written must have an extension of ".json.db" but can otherwise overwrite other metadata files (such as ACL records, hunts etc). This can corrupt these files and cause data corruption.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Rapid7 | Velociraptor | 0 – before 0.77.2 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L