Jenkins Missing Permission Check

Jenkins 2.503 and earlier, LTS 2.492.2 and earlier does not perform a permission check in an HTTP endpoint.

This allows attackers with Computer/Create permission but without Computer/Configure permission to copy an agent, gaining access to encrypted secrets in its configuration.

This is due to an incomplete fix of SECURITY-3495/CVE-2025-27622.

Jenkins 2.504, LTS 2.492.3 requires Computer/Configure permission to copy an agent containing secrets.