{"cve":"CVE-2018-1000409","nvd":{"published":"2019-01-09T23:29:02.373","modified":"2026-06-17T01:32:44.713","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-384"],"references":["http://www.securityfocus.com/bid/106532","https://jenkins.io/security/advisory/2018-10-10/#SECURITY-1158","http://www.securityfocus.com/bid/106532","https://jenkins.io/security/advisory/2018-10-10/#SECURITY-1158"],"products":["jenkins:jenkins"],"source":"nvd","synced_at":"2026-10-19T20:54:36.112582389+00:00"},"epss":{"cve":"CVE-2018-1000409","score":0.01217,"percentile":0.6861,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rr6r-p7rw-369c","url":"https://osv.dev/vulnerability/GHSA-rr6r-p7rw-369c","summary":"Session Fixation in Jenkins","modified":"2024-02-16T08:15:22.162823Z","packages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":["<2.138.2"],"fixed":["2.138.2"]},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","purl":"pkg:maven/org.jenkins-ci.main/jenkins-core","ranges":[">=2.140 <2.146"],"fixed":["2.146"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}