Velociraptor CSV Formula Injection in Export Pipeline

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64955
StatePUBLISHED
Assignerrapid7
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 10:17:20 UTC
Updated2026-08-12 13:17:23 UTC
DescriptionWhen 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.

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

EPSS: 0.003640000 probability, percentile 0.293370000 (date 2026-08-12)

Problem Types: CWE-1236 | CWE-1236 CWE-1236 Improper neutralization of formula elements in a CSV file

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.1MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
3.1CNACVSS6.1MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Rapid7 Velociraptor affected 0.77.2 semver Not specified

References

ReferenceSourceLinkTags
docs.velociraptor.app/announcements/advisories/cve-2026-64955 [email protected] docs.velociraptor.app
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Tristan Madani (Talence Security) (en)

Additional Advisory Data

Workarounds

CNA: 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.

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