Vulnerability · Published Jun 24, 2026 · Assigned by jenkins

CVE-2026-57296

High 8.8

In plain English

A high-severity path traversal in Jenkins External Workspace Manager Plugin from Jenkins Project. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 58% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.8%top 42.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Maven	org.jenkins-ci.plugins:external-workspace-manager	1.4.0	GHSA-hrmj-8fm9-cg8x

Affected products (as reported)

Vendor	Product	Versions
Jenkins Project	Jenkins External Workspace Manager Plugin	0 – through 1.3.2

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Jenkins Security Advisory 2026-06-24 vendor-advisory