Vulnerabilities in pkg:maven/org.jenkins-ci.plugins/external-workspace-manager
PACKAGECVE-2026-57296 is a HIGH (CVSS 8.8) path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting External workspace manager libraries in the Maven ecosystem. The issue involves jenkins external workspace manager plugin has a path traversal vulnerability. Remediation is available by upgrading affected packages to version 1.4.0.
pkg:maven/org.jenkins-ci.plugins/external-workspace-manager
Vulnerability advisories affecting package pkg:maven/org.jenkins-ci.plugins/external-workspace-manager. Select an advisory below to view technical details or fixes.
| Advisory ID | CVE / NVD | Severity | Summary |
|---|---|---|---|
| GHSA-hrmj-8fm9-cg8x | CVE-2026-57296 | HIGH | Jenkins External Workspace Manager Plugin has a path traversal vulnerability |
CVE-2026-57296 at a Glance
Security Impact
CVSS: 8.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
How to Fix CVE-2026-57296
To remediate this vulnerability, upgrade all affected External workspace manager dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
<dependency>
<groupId>org.jenkins-ci.plugins</groupId>
<artifactId>external-workspace-manager</artifactId>
<version>1.4.0</version>
</dependency>Run the following command in your project directory to verify that all resolved dependencies use the patched release:
mvn dependency:tree -Dincludes=org.jenkins-ci.pluginsHow to Check if You Are Affected
To determine whether your Java application is affected by CVE-2026-57296, inspect your build dependencies using the Maven Dependency Plugin:
mvn dependency:tree -Dincludes=org.jenkins-ci.pluginsAnalyze the terminal output to locate any version of External workspace manager in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.4.0), your application is affected.
Note: The mvn dependency:tree -Dincludes=org.jenkins-ci.plugins command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In External workspace manager, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-57296 Affected External workspace manager Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
org.jenkins-ci.plugins:external-workspace-manager
|
Maven |
< 1.4.0
|
1.4.0
|
References
Frequently Asked Questions
What is CVE-2026-57296?
Which External workspace manager versions are affected?
What version fixes CVE-2026-57296?
Is external-workspace-manager affected?
What is the CVSS score of CVE-2026-57296?
What CWE is associated with CVE-2026-57296?
How can I check Maven dependencies for CVE-2026-57296?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-hrmj-8fm9-cg8x",
"modified" : "2026-09-25T19:00:23Z",
"published" : "2026-06-24T15:31:47Z",
"aliases" : [ "CVE-2026-57296" ],
"summary" : "Jenkins External Workspace Manager Plugin has a path traversal vulnerability",
"details" : "Jenkins External Workspace Manager Plugin 1.3.2 and earlier does not reject `..` path segments when validating the custom workspace path provided to the `exwsAllocate` Pipeline step, allowing the resulting workspace path to escape the configured disk mount point.\n\nThis allows attackers with Item/Configure permission to read arbitrary files on the Jenkins controller file system, which can lead to remote code execution (see Reading Files).\n\nExternal Workspace Manager Plugin 1.4.0 rejects `..` path segments when validating the custom workspace path, and additionally verifies that the requested path is contained within the configured disk mount point before serving it through the external workspace browse functionality.",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Maven",
"name" : "org.jenkins-ci.plugins:external-workspace-manager"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.4.0"
} ]
} ]
} ],
"references" : [ {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-57296"
}, {
"type" : "WEB",
"url" : "https://github.com/jenkinsci/external-workspace-manager-plugin/commit/2fccbbd398cf209f5931b48e006659dbee86ddf2"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/jenkinsci/external-workspace-manager-plugin"
}, {
"type" : "WEB",
"url" : "https://github.com/jenkinsci/external-workspace-manager-plugin/releases/tag/external-workspace-manager-1.4.0"
}, {
"type" : "WEB",
"url" : "https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3777"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-22" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2026-09-25T19:00:23Z",
"nvd_published_at" : "2026-06-24T14:17:35Z"
}
}