Qualys discovered that needrestart, before version 3.8, allows local attackers to execute arbitrary code as root by tricking needrestart into running the Ruby interpreter with an attacker-controlled RUBYLIB environment variable.
Severity
CVSS 3.1
7.8 high
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
8.0% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)