GHSA-566M-QJ78-RWW5 Regular Expression Denial of Service in postcss

The package postcss versions before 7.0.36 or between 8.0.0 and 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 regex /\s sourceMappingURL=. PoC js var...