{"id":"CVE-2018-1000409","aliases":["GHSA-rr6r-p7rw-369c"],"url":"https://o3.security/vulnerability/CVE-2018-1000409","summary":"Session Fixation in Jenkins","details":"A session fixation vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java that prevented Jenkins from invalidating the existing session and creating a new one when a user signed up for a new user account.","published":"2019-01-09T23:29:02.373Z","modified":"2026-07-08T12:28:38.283211Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.138.2"},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.146"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/106532"},{"type":"ADVISORY","url":"https://jenkins.io/security/advisory/2018-10-10/#SECURITY-1158"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T12:28:38.283211Z"}}