Vulnerability · Published Aug 5, 2026 · Assigned by jenkins

CVE-2026-70436

Medium 4.3

In plain English

A medium-severity missing authorization 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 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 77.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Jenkins Project	Jenkins External Workspace Manager Plugin	0 – through 1.4.1

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

Jenkins Security Advisory 2026-08-05 vendor-advisory