Cover |
6 Months Ended |
|---|---|
Jun. 30, 2026 | |
| Entity Addresses [Line Items] | |
| Document Type | POS AM |
| Amendment Flag | true |
| Amendment Description | Amendment No. 2 |
| Entity Registrant Name | CUBEBIO HOLDINGS LIMITED |
| Entity Central Index Key | 0002058261 |
| Entity Incorporation, State or Country Code | E9 |
| Entity Address, Address Line One | 8F HYHILL Building |
| Entity Address, Address Line Two | Digital-ro 10-gil 9 |
| Entity Address, Address Line Three | Geumcheon-gu |
| Entity Address, City or Town | Seoul |
| Country Region | +82 |
| City Area Code | 02 |
| Local Phone Number | 4607-3869 |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Business Contact [Member] | |
| Entity Addresses [Line Items] | |
| Entity Address, Address Line One | 122 East 42nd Street |
| Entity Address, Address Line Two | 18th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10168 |
| City Area Code | 212 |
| Local Phone Number | 947-7200 |
| Contact Personnel Name | Cogency Global Inc. |