There is 1 open security issue in buster.
1 issue left for the package maintainer to handle:
The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern \/\*\s* sourceMappingURL=(.*).
You can find information about how to handle this issue in the security team's documentation.