Description
A denial of service vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java that allows attackers without Overall/Read permission to access a specific URL on instances using the built-in Jenkins user database security realm that results in the creation of an ephemeral user record in memory.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat OpenShift 3 | atomic-enterprise-service-catalog +1 | 1:3.11.51-1.git.1671.2d16650.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | atomic-openshift +12 | 3.11.51-1.git.0.1560686.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | atomic-openshift-cluster-autoscaler | 3.11.51-1.git.0.0aa9fc2.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | atomic-openshift-descheduler | 3.11.51-1.git.300.89070e8.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | atomic-openshift-dockerregistry | 3.11.51-1.git.446.d29ce0e.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | atomic-openshift-metrics-server | 3.11.51-1.git.52.03e3a91.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | atomic-openshift-node-problem-detector | 3.11.51-1.git.254.22189b0.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | atomic-openshift-service-idler | 3.11.51-1.git.14.813574a.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | atomic-openshift-web-console | 3.11.51-1.git.324.0ae64ed.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | cri-o | 1.11.10-1.rhaos3.11.git42c86f0.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | golang-github-openshift-oauth-proxy | 3.11.51-1.git.419.1af74df.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | jenkins | 2.138.2.1542054911-1.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | jenkins-2-plugins | 3.11.1542061886-1.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | kibana | 5.6.13-1.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | openshift-ansible +4 | 3.11.51-2.git.0.51c90a3.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | openshift-enterprise-autoheal | 3.11.51-1.git.219.8ea4275.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | openshift-enterprise-cluster-capacity | 3.11.51-1.git.380.ffa21af.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | openshift-monitor-project-lifecycle | 3.11.51-1.git.59.7b59e29.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | openshift-monitor-sample-app | 3.11.51-1.git.5.f6d0188.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | prometheus +1 | 3.11.51-1.git.5023.0ad933c.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | prometheus-alertmanager +1 | 3.11.51-1.git.0.50a0687.el7 | RHBA-2018:3743 |
| Red Hat OpenShift 3 | prometheus-node-exporter +1 | 3.11.51-1.git.1063.12dd8be.el7 | RHBA-2018:3743 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | < 2.138.2 | 2.138.2 | GHSA-4h47-h3cr-23wh |
| Maven | org.jenkins-ci.main:jenkins-core | >= 2.140, < 2.146 | 2.146 | GHSA-4h47-h3cr-23wh |
Advisories 1
- RHBA-2018:3743 Red Hat Bug Fix Advisory: OpenShift Container Platform 3.11 bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026