CVE-2026-84646
Published:September 02, 2026
Updated:September 22, 2026
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.
Affected Packages
https://github.com/jenkinsci/jenkins.git (GITHUB):
Affected version(s) >=jenkins-2.568.1-rc <jenkins-2.568.3Fix Suggestion:
Update to version jenkins-2.568.3https://github.com/jenkinsci/jenkins.git (GITHUB):
Affected version(s) >=jenkins-1.409.1 <jenkins-2.580Fix Suggestion:
Update to version jenkins-2.580org.jenkins-ci.main:jenkins-core (JAVA):
Affected version(s) >=1.396 <2.580Fix Suggestion:
Update to version 2.580org.jenkins-ci.main:jenkins-core (JAVA):
Affected version(s) >=2.568 <2.568.3Fix Suggestion:
Update to version 2.568.3Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Deserialization of Untrusted Data
EPSS
Base Score:
0.28