Description
Jenkins 2.227 and earlier, LTS 2.204.5 and earlier does not properly escape node labels that are shown in the form validation for label expressions on job configuration pages, resulting in a stored XSS vulnerability exploitable by users able to define node labels.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Jenkins project | Jenkins | unspecified – ≤ 2.227, unspecified – ≤ LTS 2.204.5 | — |
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 4 | atomic-enterprise-service-catalog +1 | 1:4.3.25-202006081518.git.1.52b3a66.el7 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | atomic-openshift-service-idler | 4.3.25-202006081518.git.1.79365c5.el7 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | conmon | 2:2.0.17-1.rhaos4.3.el7 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | cri-o | 1.16.6-15.dev.rhaos4.3.gitebc053b.el7 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | jenkins | 2.222.1.1591349991-1.el7 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | machine-config-daemon | 4.3.25-202006081518.git.1.478b31a.el8 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | openshift +1 | 4.3.25-202006060952.git.1.96c30f6.el7 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | openshift-ansible +1 | 4.3.25-202006060952.git.1.1253fde.el7 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | openshift-clients +1 | 4.3.25-202006060952.git.1.fd93102.el7 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | openshift-kuryr +4 | 4.3.25-202006081518.git.1.240b401.el8 | RHBA-2020:2444, RHBA-2020:2435 |
| Red Hat OpenShift 4 | s390utils +12 | 2:2.6.0-23.el8 | RHBA-2020:2435 |
| Red Hat OpenShift 3 | jenkins | 2.222.1.1591351669-1.el7 | RHBA-2020:2477 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | jenkins | 2.228-r0 | — |
| Alpine v3.23 | jenkins | 2.228-r0 | — |
| Alpine v3.22 | jenkins | 2.228-r0 | — |
| Alpine v3.21 | jenkins | 2.228-r0 | — |
| Alpine v3.20 | jenkins | 2.228-r0 | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | jenkins | 2.228-r0 | — |
| Alpine v3.18 | jenkins | 2.228-r0 | — |
| Alpine v3.17 | jenkins | 2.228-r0 | — |
| Alpine v3.16 | jenkins | 2.228-r0 | — |
| Alpine v3.15 | jenkins | 2.228-r0 | — |
| Alpine v3.14 | jenkins | 2.228-r0 | — |
| Alpine v3.13 | jenkins | 2.228-r0 | — |
| Alpine v3.12 | jenkins | 2.228-r0 | — |
| Alpine v3.11 | jenkins | 2.228-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | < 2.228 | 2.228 | GHSA-g8pg-qrvm-wgh2 |
| Maven | org.jenkins-ci.main:jenkins-core | >= 2.204.6, < 2.228 | 2.228 | GHSA-g8pg-qrvm-wgh2 |
Advisories 3
- RHBA-2020:2477 Red Hat Bug Fix Advisory: OpenShift Container Platform 3.11 bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHBA-2020:2444 Red Hat Bug Fix Advisory: OpenShift Container Platform 4.4.8 packages update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RHBA-2020:2435 Red Hat Bug Fix Advisory: OpenShift Container Platform 4.3.25 packages update Red Hat Security Advisories (RHSA) · Jun 27, 2026