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CVE-2018-1000409

19
FAUCET Score

CVE-2018-1000409 describes a session fixation vulnerability in Jenkins 2.145 and earlier, and LTS 2.138.1 and earlier. This flaw allowed an existing session to persist when a new user account was created, rather than invalidating it. Rated Medium severity (CVSS 5.4), it has a network attack vector with low attack complexity, potentially leading to limited confidentiality and integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.138.1CPE matchmatch criteria
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
<= 2.145CPE matchmatch criteria
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 78th percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (30)

mavenpatch availablevia ghsa
Product: org.jenkins-ci.main:jenkins-coreFixed in: 2.138.2
mavenpatch availablevia ghsa
Product: org.jenkins-ci.main:jenkins-coreFixed in: 2.146
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-enterprise-service-catalog-1:3.11.51-1.git.1671.2d16650.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-openshift-0:3.11.51-1.git.0.1560686.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-openshift-cluster-autoscaler-0:3.11.51-1.git.0.0aa9fc2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-openshift-descheduler-0:3.11.51-1.git.300.89070e8.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-openshift-dockerregistry-0:3.11.51-1.git.446.d29ce0e.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-openshift-metrics-server-0:3.11.51-1.git.52.03e3a91.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-openshift-node-problem-detector-0:3.11.51-1.git.254.22189b0.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-openshift-service-idler-0:3.11.51-1.git.14.813574a.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: atomic-openshift-web-console-0:3.11.51-1.git.324.0ae64ed.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: cri-o-0:1.11.10-1.rhaos3.11.git42c86f0.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: golang-github-openshift-oauth-proxy-0:3.11.51-1.git.419.1af74df.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: golang-github-prometheus-alertmanager-0:3.11.51-1.git.0.50a0687.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: golang-github-prometheus-node_exporter-0:3.11.51-1.git.1063.12dd8be.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: golang-github-prometheus-prometheus-0:3.11.51-1.git.5023.0ad933c.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: jenkins-0:2.138.2.1542054911-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: jenkins-2-plugins-0:3.11.1542061886-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: kibana-0:5.6.13-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: openshift-ansible-0:3.11.51-2.git.0.51c90a3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: openshift-enterprise-autoheal-0:3.11.51-1.git.219.8ea4275.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: openshift-enterprise-cluster-capacity-0:3.11.51-1.git.380.ffa21af.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: openshift-monitor-project-lifecycle-0:3.11.51-1.git.59.7b59e29.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: openshift-monitor-sample-app-0:3.11.51-1.git.5.f6d0188.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.10Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.4Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.5Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.6Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.7Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.9Fixed in: jenkins

Vendor Advisories (2)

mavenGHSA-rr6r-p7rw-369cmedium

Session Fixation in Jenkins

May 14, 2022
redhatCVE-2018-1000409Moderate

jenkins: Session fixation vulnerability on user signup

Oct 10, 2018

References

jenkins.io / security/advisory/2018-10-10
Vendor Advisory
securityfocus.com / bid/106532
Third Party AdvisoryVDB Entry