CVE-2026-18640: RAPID7 Velociraptor

High severity, CVSS 7.1. EPSS: 0.4% chance of exploitation in the next 30 days.

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

• RAPID7 Velociraptor: before 0.77.2 (fixed in 0.77.2)

Published 2026-08-11. Last modified 2026-08-28.