Velociraptor CSV Formula Injection in Export Pipeline
CVSS score
6.1
EPSS probability
%0.4
Risk score
0.0
Published
2 mo ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
Tam uyum
Evidence confidence
%61
Short explanation
Velociraptor fails to sanitize CSV cells with certain prefixes during export, enabling Microsoft Excel to execute them as formulas, resulting in arbitrary code execution. The vulnerability affects versions prior to 0.77.2 and has a MEDIUM severity rating.
This vulnerability enables attackers to inject malicious formulas into CSV files exported by Velociraptor, which can be executed in Excel, leading to system compromise. It is a critical risk in environments where CSV exports are common and Excel is used for data analysis.
What should be done?
- Upgrade to Velociraptor 0.77.2 or later as per vendor advisory
- Ensure CSV exports are sanitized to prevent formula execution in Excel
The sources give limited detail on some technical conditions. Review the chain of evidence below before deciding how to act.
Chain of evidence and sources
Velociraptor, CSV dosyalarında belirli karakterlerle başlayan hücreleri temizleme yapmaz ve bu hücreleri Excel tarafından formül olarak çalıştırma riskine maruz bırakır, bu da CSV dosyaların istismar edilmesine neden olur.
Açık, Microsoft Excel'in ya da Velociraptor'un temizleme mantığına ait olup olmadığı kesin olarak belirtilmemiştir, ancak iki sistemin etkileşimi riski oluşturur.
Açık, 0.77.2 sürümünden önceki Velociraptor sürümlerinde etkili olup, MEDIUM ciddiyetli ve 6.1 CVSS puanıyla sınıflandırılmıştır.
Show the technical text from the sources
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.
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N
CWE: CWE-1236
Explanation produced with the local qwen3:4b-instruct model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-64955 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | rapid7 | velociraptor | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 6.1 | CVSS V3_1 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N | CVE CNA |
| 6.1 | CVSS V31 | MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N | NVD |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-64955 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-64955 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
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