Package: nodejs Version: 12.21.0~dfsg-4 Severity: important This version has security issues, which have been fixed with 12.21.1 - see https://github.com/nodejs/node/blob/master/doc/changelogs/CHANGELOG_V12.md#12.22.1
Also, the upstream maintenance support for Version 12 will end in April 2022, meaning, the Debian Security Team and/or maintainer will have the sole responsibility to keep this package secure from then on, with no support from upstream, if it will be delivered like this with bullseye. Version 12 of nodejs exists since 2019, and the recommended current version to be used as recommended by upstream is 14.x, which is available since April 2020.