Vulnerability DatabaseCVE-2021-21683
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CVE-2021-21683
Published:October 06, 2021
Updated:July 21, 2026
The file browser in Jenkins 2.314 and earlier, LTS 2.303.1 and earlier may interpret some paths to files as absolute on Windows, resulting in a path traversal vulnerability allowing attackers with Overall/Read permission (Windows controller) or Job/Workspace permission (Windows agents) to obtain the contents of arbitrary files.
Affected Packages
org.jenkins-ci.main:jenkins-core (JAVA):
Affected version(s) >=2.304 <2.315
Fix Suggestion:
Update to version 2.315
org.jenkins-ci.main:jenkins-core (JAVA):
Affected version(s) >=1.396 <2.303.2
Fix Suggestion:
Update to version 2.303.2
Related Resources (5)
http://www.openwall.com/lists/oss-security/2021/10/06/1
https://github.com/jenkinsci/jenkins
https://nvd.nist.gov/vuln/detail/CVE-2021-21683
https://github.com/jenkinsci/jenkins/commit/3f679fc12d073676a4441d3fa8b5fff34c07662f
https://www.jenkins.io/security/advisory/2021-10-06/#SECURITY-2481
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22
EPSS
Base Score:
2.10