CVE-2026-70428 Details
Description
Jenkins 2.575 and earlier, LTS 2.568.1 and earlier improperly identifies file paths attempting path traversal in file parameter names, allowing attackers with Item/Configure and Item/Build permission to write files to arbitrary locations on the controller file system.
A path traversal vulnerability has been identified in Jenkins versions through 2.575 and LTS 2.568.1. The vulnerability arises because Jenkins improperly validates file paths in file parameter names, allowing attackers with Item/Configure and Item/Build permissions to write files to arbitrary locations on the controller file system. This issue is restricted only by the file system access permissions of the user running Jenkins. Exploitation of this vulnerability could lead to arbitrary code execution, for example, by placing malicious scripts in the 'JENKINS_HOME/init.groovy.d/' directory or deploying harmful plugins to 'JENKINS_HOME/plugins/'.
Users are advised to update Jenkins to version 2.576 or LTS 2.568.2, both of which include a fix for this vulnerability. Additionally, a workaround is available for those unable to update. Details can be found in the Jenkins Security Advisory.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 5, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3927 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| jenkins jenkins | < 2.568.2 < 2.576 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 8, 2026 | Initial Analysis | [email protected] |
| Aug 5, 2026 | CVE Modified | CISA-ADP |
| Aug 5, 2026 | New CVE Received | [email protected] |