| Document And Entity Information | Mar. 22, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 22, 2022 |
| Entity Registrant Name | CinCor Pharma, Inc. |
| Entity Central Index Key | 0001868734 |
| Entity Emerging Growth Company | true |
| Entity File Number | 001-41201 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 36-4931245 |
| Entity Address, Address Line One | 200 Clarendon Street |
| Entity Address, Address Line Two | 6th Floor |
| Entity Address, City or Town | Boston |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02116 |
| City Area Code | 844 |
| Local Phone Number | 531-1834 |
| Entity Information, Former Legal or Registered Name | Not Applicable |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Ex Transition Period | true |
| Title of 12(b) Security | Common Stock, $0.00001 par value per share |
| Trading Symbol | CINC |
| Security Exchange Name | NASDAQ |
