Vulnerability-Lookup

GHSA-FRG5-MQ2M-H39J

Vulnerability from github – Published: 2026-08-12 12:32 – Updated: 2026-08-12 12:32

Details

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.

Severity

3.5 (Low)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64951"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-369"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-12T10:17:20Z",
    "severity": "LOW"
  },
  "details": "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\u00a0ShouldPadFile() function.",
  "id": "GHSA-frg5-mq2m-h39j",
  "modified": "2026-08-12T12:32:54Z",
  "published": "2026-08-12T12:32:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64951"
    },
    {
      "type": "WEB",
      "url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-64951"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-64951 (GCVE-0-2026-64951)

Vulnerability from cvelistv5 – Published: 2026-08-12 09:49 – Updated: 2026-08-12 12:29

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.

Severity

3.5 (Low)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-12 12:28 UTC

CWE

CWE-369 - Divide by zero

Assigner

rapid7

References

1 reference

URL	Tags
http://docs.velociraptor.app/announcements/adviso…

Impacted products

1 product

Vendor	Product	Version
Rapid7	Velociraptor	Affected: 0 , < 0.77.2 (semver)

Credits

Tristan Madani (Talence Security)

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JSON

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                "options": [
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-12T12:28:55.260841Z",
                "version": "2.0.3"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-FRG5-MQ2M-H39J

CVE-2026-64951 (GCVE-0-2026-64951)

Tags

Sightings

Nomenclature