CVE-2026-70436 — MEDIUM (4.3)

Vulnerability 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.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-862

References

https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3907

FAQ

What is CVE-2026-70436?

CVE-2026-70436 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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...

How severe is CVE-2026-70436?

CVE-2026-70436 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-70436?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.