Vulnerability in Jenkins Pipeline\
CVE-2026-57284
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Jenkins Pipeline\ — versions _groovy
- Jenkins Pipeline\: Groovy
- Jenkins Project Pipeline: Groovy Plugin — versions 0
Weakness classification (CWE)
References
- www.jenkins.io/security/advisory/2026-06-24/ (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-57284?
- CVE-2026-57284 is a medium-severity vulnerability in Jenkins Pipeline\, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 4.3/10. Published 2026-06-24.
- How severe is CVE-2026-57284?
- Medium severity. CVSS v3 base score is 4.3 out of 10.