Description
Session fixation vulnerability in Jenkins before 1.551 and LTS before 1.532.2 allows remote attackers to hijack web sessions via vectors involving the "override" of Jenkins cookies.
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 2 | jenkins | 1.565.3-1.el6op | RHBA-2014:1630 |
| Red Hat OpenShift 2 | jenkins-plugin-openshift | 0.6.40.1-0.el6op | RHBA-2014:1630 |
| Red Hat OpenShift 2 | openshift-origin-cartridge-jenkins | 1.20.3.5-1.el6op | RHBA-2014:1630 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Maven | org.jenkins-ci.main:jenkins-core | >= 1.533, < 1.551 | 1.551 | GHSA-8jfx-h6q2-v4g3 |
| Maven | org.jenkins-ci.main:jenkins-core | < 1.532.2 | 1.532.2 | GHSA-8jfx-h6q2-v4g3 |
Advisories 1
- RHBA-2014:1630 Red Hat Bug Fix Advisory: Red Hat OpenShift Enterprise 2.1 jenkins-plugin-openshift bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026