Answer in brief
CVE-2026-57296 records a High severity (CVSS 8.8) vulnerability in Jenkins External Workspace Manager Plugin has a path traversal vulnerability. The current sources do not mark it as known exploited. The current feed maps org.jenkins-ci.plugins:external-workspace-manager (maven), org.jenkins-ci.plugins:external-workspace-manager (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps org.jenkins-ci.plugins:external-workspace-manager (maven), org.jenkins-ci.plugins:external-workspace-manager (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| org.jenkins-ci.plugins:external-workspace-managermaven | <1.4.0 | 1.4.0 |
| org.jenkins-ci.plugins:external-workspace-managermaven | >=0 <1.4.0 | 1.4.0 |
Published upstream
Jun 24, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Sep 25, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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. This 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). External 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.
Quoted source text, attributed separately from HOL analysis.