CVE-2026-117618
Published:October 28, 2026
Updated:October 29, 2026
In Jenkins 2.587 and earlier, LTS 2.580.1 and earlier, the HTTP endpoint for creating the first user account does not check whether the setup wizard has been completed, resulting in a race condition that allows unauthenticated attackers to create an administrator account while the initial user account is being replaced.
Affected Packages
https://github.com/jenkinsci/jenkins.git (GITHUB):
Affected version(s) >=jenkins-2.581 <jenkins-2.588Fix Suggestion:
Update to version jenkins-2.588https://github.com/jenkinsci/jenkins.git (GITHUB):
Affected version(s) >=jenkins-2.7.1 <jenkins-2.580.2 || >=jenkins-2.580.1-rc <jenkins-2.580.2Fix Suggestion:
Update to version jenkins-2.580.2org.jenkins-ci.main:jenkins-core (JAVA):
Affected version(s) >=2.581 <2.588Fix Suggestion:
Update to version 2.588org.jenkins-ci.main:jenkins-core (JAVA):
Affected version(s) >=2.0-alpha-3 <2.580.2 || >=2.580 <2.580.2Fix Suggestion:
Update to version 2.580.2Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
9.2
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH