Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Mar. 04, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Current Fiscal Year End Date	--12-31
Entity Registrant Name	VOR BIOPHARMA INC.
Entity Central Index Key	0001817229
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity File Number	001-39979
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	81-1591163
Entity Address, Address Line One	100 Cambridgepark Drive
Entity Address, Address Line Two	Suite 101
Entity Address, City or Town	Cambridge
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02140
City Area Code	617
Local Phone Number	655-6580
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Common Stock, Shares Outstanding		37,488,370
Entity Public Float			$ 351,650,244.65
ICFR Auditor Attestation Flag	false
Entity Shell Company	false
Document Annual Report	true
Document Transition Report	false
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Trading Symbol	VOR
Security Exchange Name	NASDAQ
Auditor Name	Ernst & Young LLP
Auditor Location	Boston, Massachusetts
Auditor Firm ID	42