CVE-2026-106056: Rundeck

High severity, CVSS 7.5. EPSS: 1.2% chance of exploitation in the next 30 days.

Rundeck before 6.2.0 contains an OS command injection vulnerability that allows authenticated users with job run permission to execute commands on Windows nodes by supplying crafted option values. Attackers can inject cmd.exe metacharacters such as && or | into free-text options, which CLIUtils.quoteWindowsCMDArg wraps in ineffective single quotes, running commands with node executor credential privileges.

Affected products

• Rundeck Rundeck: before 6.2.0 (fixed in 6.2.0)

Published 2026-10-07. Last modified 2026-10-07.