Both the Vatican and the USCCB have released statements about the morality of the COVID-19 vaccine that are now available.
“In view of the gravity of the current pandemic and the lack of availability of alternative vaccines, the reasons to accept the new COVID-19 vaccines from Pfizer and Moderna are sufficiently serious to justify their use, despite their remote connection to morally compromised cell lines. (Source: USCCB)
Below are links to the UCCB website, and to the Official Statement from the Vatican.
Vatican Statement