CVE-2026-18640: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Rapid7 Velociraptor
CVE-2026-18640 is a path traversal vulnerability in Rapid7 Velociraptor's NewNotebook API. It allows an authenticated user with NOTEBOOK_EDIT permission to write files outside the intended data store directory. The vulnerability permits overwriting metadata files with a .json.db extension, potentially causing data corruption. The issue affects versions prior to 0.77.2. The CVSS score is 7.1, indicating high severity.
AI Analysis
Technical Summary
The NewNotebook API in Rapid7 Velociraptor does not properly sanitize input parameters, enabling an authenticated user with NOTEBOOK_EDIT permission to perform path traversal. This allows writing notebook records outside the organization's designated data store directory. Although the file extension is restricted to .json.db, the user can overwrite critical metadata files such as ACL records and hunts, leading to data corruption. This vulnerability affects versions before 0.77.2. There is no official remediation level or patch link provided in the data.
Potential Impact
An attacker with NOTEBOOK_EDIT permission can overwrite important metadata files by exploiting the path traversal vulnerability, causing data corruption. This can disrupt normal operations related to access control lists, hunts, and other metadata management within Velociraptor. There is no indication of confidentiality or availability impact beyond data integrity issues. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict NOTEBOOK_EDIT permissions to trusted users only to reduce risk. Monitor for updates from Rapid7 regarding patches or official mitigations.
CVE-2026-18640: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in Rapid7 Velociraptor
Description
CVE-2026-18640 is a path traversal vulnerability in Rapid7 Velociraptor's NewNotebook API. It allows an authenticated user with NOTEBOOK_EDIT permission to write files outside the intended data store directory. The vulnerability permits overwriting metadata files with a .json.db extension, potentially causing data corruption. The issue affects versions prior to 0.77.2. The CVSS score is 7.1, indicating high severity.
CVSS v3.1
Score 7.1high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The NewNotebook API in Rapid7 Velociraptor does not properly sanitize input parameters, enabling an authenticated user with NOTEBOOK_EDIT permission to perform path traversal. This allows writing notebook records outside the organization's designated data store directory. Although the file extension is restricted to .json.db, the user can overwrite critical metadata files such as ACL records and hunts, leading to data corruption. This vulnerability affects versions before 0.77.2. There is no official remediation level or patch link provided in the data.
Potential Impact
An attacker with NOTEBOOK_EDIT permission can overwrite important metadata files by exploiting the path traversal vulnerability, causing data corruption. This can disrupt normal operations related to access control lists, hunts, and other metadata management within Velociraptor. There is no indication of confidentiality or availability impact beyond data integrity issues. No known exploits in the wild have been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict NOTEBOOK_EDIT permissions to trusted users only to reduce risk. Monitor for updates from Rapid7 regarding patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- rapid7
- Date Reserved
- 2026-08-03T10:46:49.793Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7b3f3cbf8831d539f2ae81
Added to database: 08/11/2026, 15:26:52 UTC
Last enriched: 08/11/2026, 15:41:40 UTC
Last updated: 08/11/2026, 15:41:40 UTC
Views: 3
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