FKIE_CVE-2026-90894

Vulnerability from fkie_nvd - Published: 2026-09-14 10:17 - Updated: 2026-09-18 19:31
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Parallels Desktop runs prl_disp_service as root. Local clients reach it on the world-writable socket /var/run/prl_disp_service.socket. PrlSrv_LoginLocal accepts peer credentials. No Parallels signature. No admin group. After login, PrlSrv_InstallAppliance lets you pick the appliance folder (sVmParentPath). The daemon unpacks with one string, tar -xf "%1" -C "%2", then Qt QProcess::splitCommand chops that string into words. A quote in the folder name closes early. The leftover text becomes extra tar flags. macOS tar --use-compress-program= runs the named program as root.
References
reefs@jfrog.comhttps://kb.parallels.com/en/131168
reefs@jfrog.comhttps://www.parallels.com/products/desktop/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "packageName": "Parallels Desktop",
          "platforms": [
            "macOS"
          ],
          "product": "Parallels Desktop for Mac",
          "vendor": "Parallels",
          "versions": [
            {
              "status": "affected",
              "version": "26.4.0"
            },
            {
              "status": "unaffected",
              "version": "27.0.0"
            }
          ]
        }
      ],
      "source": "reefs@jfrog.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Parallels Desktop runs\u00a0prl_disp_service\u00a0as root. Local clients reach it on the world-writable socket\u00a0/var/run/prl_disp_service.socket.\u00a0PrlSrv_LoginLocal\u00a0accepts peer credentials. No Parallels signature. No admin group.\n\n\n\nAfter login,\u00a0PrlSrv_InstallAppliance\u00a0lets you pick the appliance folder (sVmParentPath). The daemon unpacks with one string,\u00a0tar -xf \"%1\" -C \"%2\", then Qt\u00a0QProcess::splitCommand\u00a0chops that string into words. A quote in the folder name closes early. The leftover text becomes extra tar flags. macOS\u00a0tar --use-compress-program=\u00a0runs the named program as root."
    }
  ],
  "id": "CVE-2026-90894",
  "lastModified": "2026-09-18T19:31:11.370",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "reefs@jfrog.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-90894",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-14T10:23:23.018106Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-14T10:17:06.133",
  "references": [
    {
      "source": "reefs@jfrog.com",
      "url": "https://kb.parallels.com/en/131168"
    },
    {
      "source": "reefs@jfrog.com",
      "url": "https://www.parallels.com/products/desktop/"
    }
  ],
  "sourceIdentifier": "reefs@jfrog.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        },
        {
          "lang": "en",
          "value": "CWE-88"
        },
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "reefs@jfrog.com",
      "type": "Secondary"
    }
  ]
}



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