CVE-2026-57284: Jenkins Pipeline: Groovy

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Jenkins Pipeline: Groovy Plugin 4331.v9d06ed4658ff and earlier does not restrict the types that can be instantiated through the Pipeline Snippet Generator, allowing attackers to instantiate types related to job or system configuration other than Pipeline steps.

Affected products

• Jenkins Pipeline: Groovy: up to and including 4331.v9d06ed4658ff

Published 2026-06-24. Last modified 2026-06-26.