CVE-2026-57296 json
Jenkins External Workspace Manager Plugin has a path traversal vulnerability
published 2026-06-24 4 mo ago modified 2026-10-25 14 d ago also GHSA-hrmj-8fm9-cg8x , EUVD-2026-38777
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
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.
Patch / fix
- maven org.jenkins-ci.plugins:external-workspace-manager 1.4.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.83% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.jenkins-ci.plugins:external-workspace-manager | <1.4.0 |
1.4.0 |
Affected products
- Jenkins Project Jenkins External Workspace Manager Plugin
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/jenkinsci/external-workspace-manager-plugin/commit/2fccbbd398cf209f5931b48e006659dbee86ddf2
web
-
jenkins.io
/security/advisory/2026-06-24/#SECURITY-3777
vendor-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-57296
advisory
-
github.com
/jenkinsci/external-workspace-manager-plugin
package
-
github.com
/jenkinsci/external-workspace-manager-plugin/releases/tag/external-workspace-manager-1.4.0
web
Sources
- CVE List CVE-2026-57296
- GitHub Advisory GHSA-hrmj-8fm9-cg8x
- NVD CVE-2026-57296
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