Velociraptor DoS triggered by Divide by Zero panic

{
  "id": "0d89c6236fb28672b22940f7b94c812f528c1c9174c3f8e12268782e2bcafdf6",
  "url": "https://osv.dev/vulnerability/CVE-2026-64951",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Velociraptor DoS triggered by Divide by Zero panic",
    "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. The problem is a Divide by Zero bug in the ShouldPadFile() function.",
    "evidence": "osv:CVE-2026-64951",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-64951",
      "aliases": [
        "CVE-2026-64951"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/velocidex/velociraptor",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c0c9dd609140139efcb37c47e2afa79ed57e6c84"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.77.2"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.77.1",
            "v0.77.1-rc1",
            "v0.76.1-rc1",
            "v0.75",
            "v0.74",
            "v0.73",
            "v0.72",
            "v0.7.0",
            "v0.7.0-rc1",
            "v0.6.8-rc1",
            "v0.6.7-rc1",
            "v0.6.4-rc1",
            "v0.6.3-rc1",
            "v0.6.2-rc1",
            "v0.6.1-rc1",
            "v0.6.0-rc1",
            "v0.5.9-rc1",
            "v0.5.8-rc1",
            "v0.5.7",
            "v0.5.6",
            "v0.5.5-1",
            "v0.5.5",
            "v0.5.4",
            "v0.5.3",
            "v0.5.2",
            "v0.5.1",
            "v0.5.0",
            "v0.4.9",
            "v0.4.8",
            "v0.4.7",
            "v0.4.6",
            "v0.4.5",
            "v0.4.4",
            "v0.4.3",
            "v0.4.2",
            "v0.4.1",
            "v0.4.0",
            "v0.3.9",
            "v0.3.8",
            "v0.3.7",
            "v0.3.6",
            "v0.3.5",
            "v0.3.4",
            "v0.3.3",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "0.2.9",
            "0.2.8",
            "0.2.7",
            "0.2.6",
            "0.2.5",
            "0.2.4",
            "0.2.3",
            "0.2.2",
            "0.2.1",
            "v0.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64951.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:27.242180195Z",
      "provider": "osv",
      "references": [
        "https://github.com/Velocidex/velociraptor/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64951.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-64951"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-369"
        ],
        "cna_assigner": "rapid7",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64951.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-64951",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 493961,
  "published_at": "2026-08-12T09:49:25.635+00:00"
}