What’s Vulnerable › Vulnerabilities

CVE-2026-106056: Rundeck before 6.2.0 OS Command Injection via Windows Job Option Quoting

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-07 · updated 2026-10-07
• Weakness: CWE-78

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.

Affected products

• rundeck: before 6.2.0 — fixed in 6.2.0

How to fix

Upgrade to a fixed version: rundeck 6.2.0. Check the vendor advisory for mitigations.

References

• https://github.com/rundeck/rundeck
• https://github.com/rundeck/rundeck/blob/v6.1.0/core/src/main/java/com/dtolabs/rundeck/core/cli/CLIUtils.java#L146-L158
• https://github.com/rundeck/rundeck/commit/807d9cf0eef63669b342e02e05a740e97f84f013
• https://github.com/rundeck/rundeck/pull/10414
• https://github.com/rundeck/rundeck/releases/tag/v6.2.0
• https://www.vulncheck.com/advisories/rundeck-before-6.2.0-os-command-injection-via-windows-job-option-quoting

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