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TI-2026-61766 Aliases CVE-2026-90894GHSA-xf5f-rxc7-27mg

Parallels Desktop local privilege escalation via appliance extract argument injection

Priority LOW 35CWE-269Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation, Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269 and CWE-78.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00168 6th percentileScored 2026-11-07
Fix Fixed Parallels Desktop for Mac (Parallels): 27.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ParallelsParallels Desktop for Mac26.4.027.0.0Patch availableCNA
  • Parallels Desktop for Mac VendorParallels Affected 26.4.0 Fixed in 27.0.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:parallels:parallels_desktop:*:*:*:*:*:*:*:*——Parallels
  • cpe:2.3:a:parallels:parallels_desktop:*:*:*:*:*:*:*:* Versions — — ·Parallels

Remediation

  • Fix · CNA Parallels Desktop for Mac (Parallels) Fixed in 27.0.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-90894
  2. 2026-10-03 Alias added: GHSA-xf5f-rxc7-27mg

References

Other 2

  • TI-2025-22549 Path traversal in Parallels Desktop for Mac CVSS 3.1HIGH 8.8
  • TI-2022-19453 The Web Client of Parallels Remote Application Server v18.0 is vulnerable to Host Header… CVSS 3.1HIGH 8.1
  • TI-2024-36288 Link following in Parallels Desktop for Mac CVSS 3.1HIGH 7.8
  • TI-2024-35227 Link following in Parallels Desktop for Mac CVSS 3.1HIGH 7.8
  • TI-2024-24264 Link following in Parallels Desktop for Mac CVSS 3.1HIGH 7.8
  • TI-2013-04282 The default configuration of Parallels Plesk Panel 9.0.x and 9.2.x on UNIX, and Small… CVSS 2.0HIGH 7.5
See all 158 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences