Description
A data modification vulnerability exists in Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in User.java, IdStrategy.java that allows attackers to submit crafted user names that can cause an improper migration of user record storage formats, potentially preventing the victim from logging into Jenkins.
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 | jenkins | 2.138.4.1544416383-1.el7 | RHBA-2019:0024 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | < 2.138.4 | 2.138.4 | GHSA-4jhm-5f7g-75fp |
| Maven | org.jenkins-ci.main:jenkins-core | >= 2.140, < 2.154 | 2.154 | GHSA-4jhm-5f7g-75fp |
Advisories 1
- RHBA-2019:0024 Red Hat Bug Fix Advisory: OpenShift Container Platform 3.11 bug fix and enhancement update Red Hat Security Advisories (RHSA) · Jan 14, 2026