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.

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Fixes

Solution

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Workaround

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History

Tue, 11 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Tue, 11 Aug 2026 15:30:00 +0000

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: rapid7

Published:

Updated: 2026-08-11T17:33:21.340Z

Reserved: 2026-08-03T10:46:49.793Z

Link: CVE-2026-18640

cve-icon Vulnrichment

Updated: 2026-08-11T17:33:18.691Z

cve-icon NVD

Status : Received

Published: 2026-08-11T16:17:30.713

Modified: 2026-08-11T18:17:21.760

Link: CVE-2026-18640

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses