Path traversal in Jenkins External Workspace Manager Plugin
Priority MEDIUM 42CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00835 57th percentileScored 2026-11-07
Fix Fixed org.jenkins-ci.plugins:external-workspace-manager (Maven): 1.4.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Jenkins | Jenkins External Workspace Manager Plugin | up to 1.3.2 | — | No fix listed | CNA |
| — | org.jenkins-ci.plugins:external-workspace-manager (Maven) | before 1.4.0 | 1.4.0 | Patch available | GHSA-hrmj-8fm9-cg8x |
- Jenkins External Workspace Manager Plugin VendorJenkins Affected up to 1.3.2 Fixed in — No fix listed CNA
- org.jenkins-ci.plugins:external-workspace-manager (Maven) Vendor— Affected before 1.4.0 Fixed in 1.4.0 Patch available GHSA-hrmj-8fm9-cg8x
Remediation
- Fix · GHSA-hrmj-8fm9-cg8x org.jenkins-ci.plugins:external-workspace-manager (Maven) Fixed in 1.4.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-57296
- 2026-10-03 Alias added: GHSA-hrmj-8fm9-cg8x
References
More Jenkins vulnerabilities
- TI-2024-15885 Path traversal in Jenkins KEVCVSS 3.1CRITICAL 9.8
- TI-2019-15875 Protection mechanism failure in Jenkins Pipeline: Groovy Plugin KEVCVSS 3.1CRITICAL 9.9
- TI-2019-15874 Protection mechanism failure in Jenkins Script Security Plugin KEVCVSS 3.1CRITICAL 9.9
- TI-2018-16080 A code execution vulnerability exists in the Stapler web framework used by Jenkins 2.153… KEVCVSS 3.1CRITICAL 9.8
- TI-2017-14573 Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to an… KEVCVSS 3.1CRITICAL 9.8
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
Sources
- CVE-2026-57296 · CVE Program
- CVE-2026-57296 · NVD
- FIRST EPSS
- GHSA-hrmj-8fm9-cg8x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences