---
id: CVE-2026-64951
title: "A rogue Velociraptor client can upload a malformed sparse file such that if the GUI attempts to expand the file, a panic occurs which may crash the server process.\n\nThe problem is a Divide by Zero bug in the\_ShouldPadFile() function."
summary: "A rogue Velociraptor client can upload a malformed sparse file such that if the GUI attempts to expand the file, a panic occurs which may crash the server process.\n\nThe problem is a Divide by Zero bug in the\_ShouldPadFile() function."
severity: low
cvss: 3.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L'
cwe:
  - CWE-369
published: '2026-08-12'
updated: '2026-08-28'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-64951'
references:
  - url: 'http://docs.velociraptor.app/announcements/advisories/cve-2026-64951/'
    label: cve@rapid7.com
tags:
  - nvd
epss: 0.00281
epssPercentile: 0.18321
ingestedAt: '2026-08-29T19:41:16.473Z'
---

## Overview

A rogue Velociraptor client can upload a malformed sparse file such that if the GUI attempts to expand the file, a panic occurs which may crash the server process.

The problem is a Divide by Zero bug in the ShouldPadFile() function.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.