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Fencer Vulns
high 8.8

CVE-2020-2109 json

Improper Input Validation in Jenkins Pipeline: Groovy Plugin

published 2020-02-12 6 y ago modified 2026-06-17 4 mo ago also GHSA-99mf-f3qh-wqrp , EUVD-2022-3340

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

Sandbox protection in Jenkins Pipeline: Groovy Plugin 2.78 and earlier can be circumvented through default parameter expressions in CPS-transformed methods.

Patch / fix

  • maven org.jenkins-ci.plugins.workflow:workflow-cps 2.79
  • jenkins-2-plugins openshift 4.3 4.3.1597915133-1.el7
  • jenkins-2-plugins openshift 4.4 4.4.1592817009-1.el7
  • jenkins-2-plugins openshift 3.11 3.11.1591354111-1.el7

red hat advisories RHSA-2020:3616RHSA-2020:2737RHSA-2020:2478

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2020-2109 updated cvss 8.8

jenkins-pipeline-groovy-plugin: sandbox protection bypass through default parameter expressions in CPS-transformed methods

  • Red Hat OpenShift Container Platform 3.11 jenkins-2-plugins 3.11.1591354111-1.el7
    fixed: vendor fix RHSA-2020:2478
  • Red Hat OpenShift Container Platform 4.3 jenkins-2-plugins 4.3.1597915133-1.el7
    fixed: vendor fix RHSA-2020:3616
  • Red Hat OpenShift Container Platform 4.4 jenkins-2-plugins 4.4.1592817009-1.el7
    fixed: vendor fix RHSA-2020:2737
  • Red Hat OpenShift Container Platform 4.5 openshift4/ose-cli v4.5.0-202007012112.p0, openshift4/ose-pod v4.5.0-202007012112.p0, openshift4/ose-etcd v4.5.0-202007012112.p0, openshift4/ose-tests v4.5.0-202007100518.p0, openshift4/ose-coredns v4.5.0-202007012112.p0, openshift4/ose-grafana v4.5.0-202007012112.p0, +71 more
    fixed: vendor fix RHBA-2020:2409

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.26% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.jenkins-ci.plugins.workflow:workflow-cps
<2.79
2.79

Affected products

  • Jenkins project Jenkins Pipeline: Groovy Plugin

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.