On March 12, 2024, our Jenkins 2.440.1 build server was compromised via a remote code execution (RCE) vulnerability in the popular Git Parameter Plugin v0.9.19, exposing 12TB of proprietary build artifacts and costing our team 142 hours of unplanned remediation work.

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Key Insights

Git Parameter Plugin versions <0.9.20 allowed unauthenticated RCE via unsanitized parameter injection, with 100% exploit reliability in our test environment

Jenkins 2.440.1 (LTS) and all prior 2.440.x releases are affected when paired with vulnerable plugin versions

Remediation cost totaled $47k in engineering hours and downtime, with 0 recurring incidents after patch deployment

By 2025, 60% of Jenkins plugin…