Jenkins External Workspace Manager Plugin CVEs and Security Vulnerabilities

CVE-2026-70436

Permission Check Bypass in Jenkins External Workspace Manager Plugin Allows Unauthorized File Disclosure

Jenkins External Workspace Manager Plugin 1.4.1 and earlier does not perform a permission check (1.4.0 and earlier) or performs an improper permission check (1.4.1) when providing access to externally-managed workspaces through the workspace browser, allowing attackers with Overall/Read permission to read files in workspaces they are not authorized to access.

CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed

Vendors

Jenkins Project

Products

Jenkins External Workspace Manager Plugin

CVE-2026-57296

Path Traversal in Jenkins External Workspace Manager Plugin Enables Arbitrary File Read and Remote Code Execution

Jenkins External Workspace Manager Plugin 1.3.2 and earlier does not reject path traversal sequences in the custom workspace path provided to the exwsAllocate Pipeline step, allowing attackers with Item/Configure permission to read arbitrary files on the Jenkins controller file system, which can lead to remote code execution.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed