Description
When Microsoft Excel imports a CSV file, it executes cells beginning with certain characters as formulas, giving such CSV files arbitrary execution. 

Velociraptor fails to sanitize such cells when exporting to CSV from various places such as the GUI, offline collector or data exports.

It is not clear if the vulnerability is actually in Microsoft Excel treating a CSV data file as executable content, or if Velociraptor should be sanitizing the data to prevent Excel from executing it. However, since this is such a common use case for Velociraptor we decided to highlight it in an advisory.
Published: 2026-08-12
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Workaround

Never open exported CSV files using Microsoft Excel or Google Docs. Libreoffice was tested to not be vulnerable to this issue so it can be used safely.

Tracking

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Advisories

No advisories yet.

History

Wed, 12 Aug 2026 17:30:00 +0000

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

Wed, 12 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Wed, 12 Aug 2026 10:15:00 +0000

Type Values Removed Values Added
Description When Microsoft Excel imports a CSV file, it executes cells beginning with certain characters as formulas, giving such CSV files arbitrary execution.  Velociraptor fails to sanitize such cells when exporting to CSV from various places such as the GUI, offline collector or data exports. It is not clear if the vulnerability is actually in Microsoft Excel treating a CSV data file as executable content, or if Velociraptor should be sanitizing the data to prevent Excel from executing it. However, since this is such a common use case for Velociraptor we decided to highlight it in an advisory.
Title Velociraptor CSV Formula Injection in Export Pipeline
Weaknesses CWE-1236
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N'}


Subscriptions

Rapid7 Velociraptor
cve-icon MITRE

Status: PUBLISHED

Assigner: rapid7

Published:

Updated: 2026-08-12T12:29:40.570Z

Reserved: 2026-07-21T08:32:47.510Z

Link: CVE-2026-64955

cve-icon Vulnrichment

Updated: 2026-08-12T12:29:23.764Z

cve-icon NVD

Status : Received

Published: 2026-08-12T10:17:20.310

Modified: 2026-08-12T13:17:23.673

Link: CVE-2026-64955

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-12T17:15:03Z

Weaknesses