Vulnerability-Lookup

CVE-2026-6948 (GCVE-0-2026-6948)

Vulnerability from cvelistv5 – Published: 2026-05-03 23:55 – Updated: 2026-06-19 12:45

Title

Unbounded Memory Allocation in VQLResponse Result-Set Writer

Summary

Velociraptor versions prior to 0.76.4 contain a resource exhaustion vulnerability in the server's agent control channel. This allows a compromised or rogue Velociraptor client to crash the server via out-of-memory (OOM) by sending crafted messages through the normal client communication channel.

Severity

4.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-04 13:08 UTC

CWE

CWE-770 - Allocation of resources without limits or throttling

Assigner

rapid7 CNA under the mitre root

CNA scorecard B 76/100 over 64 records in the last 180 days details

References

1 reference

URL	Tags
https://docs.velociraptor.app/announcements/advis…

Impacted products

1 product

Vendor	Product	Version	CPE status
Rapid7	Velociraptor	Affected: 0 , < 0.76.4 (custom) Affected: 0 , < 0.75.9 (custom)	guessed

Date Public

2026-04-27 14:00

Credits

We thank Faisal Alhumaid (Faisal.alhumaid@hotmail.com) for reporting this issue responsibly. We also thank Mika Jarvinen (mika.jarvinen@kapsi.fi) for reporting this issue responsibly at the same time. We also thank HE WEI（ギカク）(https://www.linkedin.com/in/gikaku/) for identifying and reporting an additional vulnerable code path related to this issue.

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-6948

Vulnerability from fkie_nvd - Published: 2026-05-04 00:16 - Updated: 2026-06-17 11:01

Severity

4.9 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	cve@rapid7.com	https://docs.velociraptor.app/announcements/advisories/cve-2026-6948/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 3.6,
        "source": "cve@rapid7.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-6948",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-04T13:08:05.344047Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-04T00:16:39.467",
  "references": [
    {
      "source": "cve@rapid7.com",
      "url": "https://docs.velociraptor.app/announcements/advisories/cve-2026-6948/"
    }
  ],
  "sourceIdentifier": "cve@rapid7.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "cve@rapid7.com",
      "type": "Secondary"
    }
  ]
}

GHSA-R3XQ-Q2Q6-7VCC

Vulnerability from github – Published: 2026-05-04 00:30 – Updated: 2026-05-04 00:30

Details

Velociraptor versions prior to 0.76.4 contain a resource exhaustion vulnerability in the server's agent control channel.

This allows a compromised or rogue Velociraptor client to crash the server via out-of-memory (OOM) by sending crafted messages through the normal client communication channel.

Severity

4.9 (Medium)


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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-6948"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-04T00:16:39Z",
    "severity": "MODERATE"
  },
  "details": "Velociraptor versions prior to 0.76.4 contain a resource exhaustion vulnerability in the server\u0027s agent control channel.\n\n\n\nThis allows a compromised or rogue Velociraptor client to crash the server via out-of-memory (OOM) by sending crafted messages through the normal client communication channel.",
  "id": "GHSA-r3xq-q2q6-7vcc",
  "modified": "2026-05-04T00:30:25Z",
  "published": "2026-05-04T00:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6948"
    },
    {
      "type": "WEB",
      "url": "https://docs.velociraptor.app/announcements/advisories/cve-2026-6948"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

OPENSUSE-SU-2026:12070-1

Vulnerability from csaf_opensuse - Published: 2026-10-06 00:00 - Updated: 2026-10-07 08:42

Summary

velociraptor-0.76.7.0.git145.b60ef1146-1.1 on GA media

Severity

Moderate

Scope

40 vulnerabilities in this advisory, including CVE-2026-6948.

CVE-2026-6948

4.9 (Medium)


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

Recommended: 4 products

Open the full advisory

WID-SEC-W-2026-1305

Vulnerability from csaf_certbund - Published: 2026-04-28 22:00 - Updated: 2026-05-06 22:00

Summary

Rapid7 Velociraptor: Mehrere Schwachstellen

Severity

Mittel

Scope

2 vulnerabilities in this advisory, including CVE-2026-6948.

CVE-2026-6948

Known affected: 2 products

Open the full advisory

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.

Vulnerability timeline

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-6948 (GCVE-0-2026-6948)

FKIE_CVE-2026-6948

GHSA-R3XQ-Q2Q6-7VCC

OPENSUSE-SU-2026:12070-1

WID-SEC-W-2026-1305

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