CVE-2016-3721: Jenkins before 2.3 and LTS before 1.651.2 might allow remote authenticated users to inject arbitrary build...

Security readout for executives and security teams

CVE-2016-3721 is a Jenkins vulnerability where an authenticated user could inject build parameters into a job environment through environment variables. For the business, the main risk is unauthorized influence over CI/CD build behavior, not data theft or service outage based on the provided CVSS impact. Exposure is most likely in legacy Jenkins deployments older than 2.3 or LTS older than 1.651.2, especially where non-administrative authenticated users can start or influence builds. Systems using build parameters for deployment, signing, release, or security-sensitive decisions deserve extra review. Treat this as a moderate-priority legacy Jenkins remediation item. It is not described as unauthenticated or actively exploited, but it can affect build integrity in CI/CD environments, which may have downstream business impact. Mitigation focus: Upgrade Jenkins to 2.3 or later, or LTS 1.651.2 or later.; Review the CloudBees/Jenkins advisory and plugin compatibility notes before upgrading.; Limit build trigger and job configuration permissions to trusted users while remediation is pending..

Prepared

Jun 1, 2026, 14:28 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.