FKIE_CVE-2026-8795

Vulnerability from fkie_nvd - Published: 2026-06-09 01:16 - Updated: 2026-07-23 08:10
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
A YAML injection vulnerability exists in the Windows.Collectors.Remapping artifact of Rapid7 Velociraptor before version 0.76.6. The hostname field in client_info.json inside a collection ZIP is inserted into a YAML template via Go's text/template without escaping. An attacker providing a crafted collection ZIP can leverage literal double quotes and newlines in the hostname to break out of the YAML quoted string and inject a new mount remapping entry. When an analyst applies the generated remapping file with --remap, arbitrary VQL executes on their machine with NullACLManager (all permissions granted, unsandboxed).
References
cve@rapid7.comhttps://docs.velociraptor.app/announcements/advisories/cve-2026-8795/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Linux",
            "Windows",
            "macOS"
          ],
          "product": "Velociraptor",
          "vendor": "Rapid7",
          "versions": [
            {
              "lessThan": "0.76.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "cve@rapid7.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A YAML injection vulnerability exists in the Windows.Collectors.Remapping artifact of Rapid7 Velociraptor before version 0.76.6. The hostname field in client_info.json inside a collection ZIP is inserted into a YAML template via Go\u0027s text/template without escaping. An attacker providing a crafted collection ZIP can leverage literal double quotes and newlines in the hostname to break out of the YAML quoted string and inject a new mount remapping entry. When an analyst applies the generated remapping file with --remap, arbitrary VQL executes on their machine with NullACLManager (all permissions granted, unsandboxed)."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de inyecci\u00f3n YAML existe en el artefacto Windows.Collectors.Remapping de Rapid7 Velociraptor anterior a la versi\u00f3n 0.76.6. El campo hostname en client_info.json dentro de un ZIP de colecci\u00f3n se inserta en una plantilla YAML a trav\u00e9s de text/template de Go sin escapar. Un atacante que proporciona un ZIP de colecci\u00f3n manipulado puede aprovechar comillas dobles literales y saltos de l\u00ednea en el hostname para salir de la cadena citada de YAML e inyectar una nueva entrada de reasignaci\u00f3n de montaje. Cuando un analista aplica el archivo de reasignaci\u00f3n generado con --remap, VQL arbitrario se ejecuta en su m\u00e1quina con NullACLManager (todos los permisos concedidos, sin sandbox)."
    }
  ],
  "id": "CVE-2026-8795",
  "lastModified": "2026-07-23T08:10:00.137",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "cve@rapid7.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-8795",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-09T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-09T01:16:47.470",
  "references": [
    {
      "source": "cve@rapid7.com",
      "url": "https://docs.velociraptor.app/announcements/advisories/cve-2026-8795/"
    }
  ],
  "sourceIdentifier": "cve@rapid7.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        },
        {
          "lang": "en",
          "value": "CWE-94"
        },
        {
          "lang": "en",
          "value": "CWE-116"
        }
      ],
      "source": "cve@rapid7.com",
      "type": "Secondary"
    }
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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