Critical severityNVD Advisory· Published Sep 1, 2026· Updated Sep 3, 2026
CVE-2026-67394
CVE-2026-67394
Description
A critical local privilege escalation via OS command injection vulnerability has been discovered in Plesk for Linux, affecting all versions from 18.0.34 before 18.0.79.9 and 18.0.80.5. The vulnerability allows a customer or reseller with shell access (or allowed to change their own shell access) to elevate privileges to the root account on the hosting server.
Affected products
1- Range: 18.0.34 to <18.0.79.9, 18.0.80.5
Patches
Vulnerability mechanics
References
1News mentions
1- ⚡ Weekly Recap: Chrome 0-Day, Router Hijacks, Coder Supply Chain Attack and MoreThe Hacker News · Sep 7, 2026