CVE-2026-90894

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.

Affected Software

Weaknesses

• CWE-88: CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
• CWE-78: CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
• CWE-269: CWE-269 Improper Privilege Management

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://www.parallels.com/products/desktop/
• https://kb.parallels.com/en/131168

• ←Previous
• Next→