Description
Jenkins Pipeline: Supporting APIs Plugin 838.va_3a_087b_4055b and earlier does not sanitize or properly encode URLs of hyperlinks sending POST requests in build logs, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to create Pipelines.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Jenkins project | Jenkins Pipeline: Supporting APIs Plugin | unspecified – ≤ 838.va_3a_087b_4055b | 827.829.v01c0a_3d76c4f |
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 | jenkins | 2.361.1.1675668150-1.el8 | RHSA-2023:0777 |
| Red Hat OpenShift 4 | jenkins-2-plugins | 4.9.1675668922-1.el8 | RHSA-2023:0777, RHSA-2023:0560 |
| Red Hat Ocp Tools 4 | jenkins | 2.387.1.1683009763-3.el8 | RHSA-2023:3198 |
| Red Hat Ocp Tools 4 | jenkins-2-plugins | 4.11.1683009941-1.el8 | RHSA-2023:3198, RHSA-2023:1064 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jenkins-ci.plugins.workflow:workflow-support | < 839.v35e2736cfd5c | 839.v35e2736cfd5c | GHSA-64r9-x74q-wxmh |
Advisories 5
- RHSA-2023:1064 Red Hat Security Advisory: OpenShift Developer Tools and Services for OCP 4.12 security update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2023:0777 Red Hat Security Advisory: OpenShift Container Platform 4.9.56 security update Red Hat Security Advisories (RHSA) · Oct 13, 2026
- RHSA-2023:3198 Red Hat Security Advisory: jenkins and jenkins-2-plugins security update Red Hat Security Advisories (RHSA) · Oct 8, 2026
- RHSA-2023:0560 Red Hat Security Advisory: OpenShift Container Platform 4.10.51 security update Red Hat Security Advisories (RHSA) · Oct 8, 2026
- WID-SEC-2022-1804 Jenkins Plugins: Mehrere Schwachstellen BSI CERT-Bund (WID) · Aug 14, 2024