Description
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.
Published: 2026-09-14
Score: 7.8 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

Vendor Solution

Upgrade to Parallels Desktop 27.0.1 or later.

Tracking

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Advisories

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History

Mon, 14 Sep 2026 11:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Mon, 14 Sep 2026 10:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Parallels Desktop local privilege escalation via appliance extract argument injection
Weaknesses CWE-269
CWE-78
CWE-88
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: JFROG

Published:

Updated: 2026-09-14T10:23:46.541Z

Reserved: 2026-09-14T09:33:11.942Z

Link: CVE-2026-90894

cve-icon Vulnrichment

Updated: 2026-09-14T10:23:41.733Z

cve-icon NVD

Status : Received

Published: 2026-09-14T10:17:06.133

Modified: 2026-09-14T11:17:07.997

Link: CVE-2026-90894

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-14T21:00:09Z

Weaknesses
  • CWE-269

    Improper Privilege Management

  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

  • CWE-88

    Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')