Jenkins 2.299 and earlier, LTS 2.289.1 and earlier does not invalidate the previous session on login. References: https://www.jenkins.io/security/advisory/2021-06-30/#SECURITY-2371 http://www.openwall.com/lists/oss-security/2021/06/30/1
This vulnerability was introduced in Jenkins 2.266 and LTS 2.277.1.
This issue has been addressed in the following products: Red Hat OpenShift Container Platform 4.8 Via RHSA-2021:3820 https://access.redhat.com/errata/RHSA-2021:3820
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2021-21671