CVE-2026-106056

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductRundeck

PublishedOct 7, 2026

First seenOct 7, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

rundeck rundeck6.2.0 or later

Patches

Vendor advisories

github.com/rundeck/rundeck/releases/tag/v6.2.0

Affected products

Product	Affected versions	Fixed in
rundeck rundeck	v < 6.2.0	6.2.0

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