CVE-2026-18640

Velociraptor directory traversal via the NewNotebook API

Published Aug 11, 2026 CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
First Time appeared Rapid7
Rapid7 velociraptor
Vendors & Products Rapid7
Rapid7 velociraptor
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Velociraptor directory traversal via the NewNotebook API
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
rapid7
Published
Updated
Aug 11, 2026, 5:33 PM
Reserved
Aug 3, 2026, 10:46 AM
Status
Awaiting Analysis
Published
Aug 11, 2026, 4:17 PM
Modified
Oct 23, 2026, 7:10 PM