Regular Expression Denial of Service in postcss
The package postcss from 7.0.0 and before 8.2.10 are vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.
Because PostCSS needs synchronous API, we can’t move from the old `source-map 0.6 to 0.7 (many other open-source projects too).
@7rulnik forked source-map 0.6 to source-map-js and back-ported performance improvements from 0.7. In 8.3 we switched from source-map to this source-map-js fork.
You map see 4x performance improvements in parsing map from processing step before PostCSS (for instance, Sass).
Document Nodes
Thanks to @gucong3000, PostCSS already parse CSS from HTML and JS files (CSS-in-JS templates and objects).
He suggested adding new Document node type to PostCSS AST to keep multiple Root nodes inside and JS/HTML/Markdown code blocks between these style blocks.
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Bumps postcss from 7.0.35 to 8.3.1. This update includes a security fix.
Vulnerabilities fixed
Sourced from The GitHub Security Advisory Database.
Release notes
Sourced from postcss's releases.
... (truncated)
Changelog
Sourced from postcss's changelog.
... (truncated)
Commits
c1d99e1
Release 8.3.1 version81bf67f
Better useless PostCSS run test37bb915
Update dependencies657cbe8
Merge pull request #1596 from postcss/dependabot/npm_and_yarn/normalize-url-4...0e9f070
Bump normalize-url from 4.5.0 to 4.5.1664b0ee
Use dirDependnency.glob in exampleb1bfc05
Merge pull request #1590 from bradlc/glob2caacf8
Addglob
message property documentation589c2d1
Merge pull request #1589 from postcss/dependabot/npm_and_yarn/ws-7.4.68acba52
Bump ws from 7.4.5 to 7.4.6Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase
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