RCE in Rundeck
CVE-2026-106056
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.
Vulnerability class: Command Injection (OS Command Injection)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/rundeck/rundeck/pull/10414 (issue-tracking, patch)
- github.com/rundeck/rundeck/commit/807d9cf0eef63669b342e02e05a740e97f84f013 (patch)
- github.com/rundeck/rundeck (product)
- github.com/rundeck/rundeck/blob/v6.1.0/core/src/main/java/com/dtolabs/rundeck/c… (technical-description)
- github.com/rundeck/rundeck/releases/tag/v6.2.0 (release-notes)
- www.vulncheck.com/advisories/rundeck-before-6.2.0-os-command-injection-via-wind… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-106056?
- CVE-2026-106056 is a high-severity vulnerability in Rundeck, classified under OS Command Injection. CVSS score: 7.5/10. Published 2026-10-07.
- How severe is CVE-2026-106056?
- High severity. CVSS v3 base score is 7.5 out of 10.