What’s Vulnerable › Vulnerabilities

CVE-2021-39133: Cross-Site Request Forgery (CSRF) can run untrusted code on Rundeck server

• Severity: medium (CVSS 6.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-30 · updated 2026-06-17
• Weakness: CWE-352

Description

Rundeck is an open source automation service with a web console, command line tools and a WebAPI. Prior to version 3.3.14 and version 3.4.3, a user with `admin` access to the `system` resource type is potentially vulnerable to a CSRF attack that could cause the server to run untrusted code on all Rundeck editions. Patches are available in Rundeck versions 3.4.3 and 3.3.14.

Affected products

• rundeck: before 3.3.14; from 3.4.0 before 3.4.3 — fixed in 3.3.14, 3.4.3

How to fix

Upgrade to a fixed version: rundeck 3.3.14, 3.4.3. Check the vendor advisory for mitigations.

References

• https://github.com/rundeck/rundeck/commit/67c4eedeaf9509fc0b255aff15977a5229ef13b9
• https://github.com/rundeck/rundeck/security/advisories/GHSA-3jmw-c69h-426c
• https://github.com/rundeck/rundeck/commit/67c4eedeaf9509fc0b255aff15977a5229ef13b9
• https://github.com/rundeck/rundeck/security/advisories/GHSA-3jmw-c69h-426c

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