build: update dependency picomatch to v4.0.4 (21.2.x)

[angular-robot]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
picomatch	4.0.3 → 4.0.4

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Release Notes

micromatch/picomatch (picomatch)

v4.0.4

Compare Source

This is a security release fixing several security relevant issues.

What's Changed

• Fix for CVE-2026-33671
• Fix for CVE-2026-33672

Full Changelog: micromatch/picomatch@4.0.3...4.0.4

[gemini-code-assist]

Code Review

This pull request updates the picomatch dependency from version 4.0.3 to 4.0.4 across several package.json files within the Angular ecosystem, including packages/angular/build/package.json, packages/angular_devkit/build_angular/package.json, and packages/angular_devkit/core/package.json. The pnpm-lock.yaml file has also been updated to reflect this dependency upgrade and its transitive effects on packages like fdir and tinyglobby. There are no review comments to address.

[Stargator]

I would like to see this merged in. We have some CI/CD vulnerability scanners that are raising issues with this.

Also, npm audit is suggesting a weird fix for my Angular 21 application to downgrade it to v17:

picomatch  4.0.0 - 4.0.3
Severity: high
Picomatch has a ReDoS vulnerability via extglob quantifiers - https://github.com/advisories/GHSA-c2c7-rcm5-vvqj
Picomatch: Method Injection in POSIX Character Classes causes incorrect Glob Matching - https://github.com/advisories/GHSA-3v7f-55p6-f55p
fix available via `npm audit fix --force`
Will install @angular-devkit/build-angular@17.1.4, which is a breaking change
node_modules/picomatch
  @angular-devkit/core  >=17.2.0-next.0
  Depends on vulnerable versions of picomatch
  node_modules/@angular-devkit/core
    @angular-devkit/architect  0.1000.0-next.0 - 0.1000.0-rc.1 || >=0.1702.0-next.0
    Depends on vulnerable versions of @angular-devkit/core
    node_modules/@angular-devkit/architect
      @angular-devkit/build-webpack  >=0.1702.0-next.0
      Depends on vulnerable versions of @angular-devkit/architect
      node_modules/@angular-devkit/build-webpack
    @angular-devkit/schematics  >=17.2.0-next.0
    Depends on vulnerable versions of @angular-devkit/core
    node_modules/@angular-devkit/schematics
    @angular/cli  10.0.0-next.0 - 10.0.0-rc.1 || 14.1.0-next.0 - 14.1.0-rc.3 || 17.0.0-next.0 - 17.0.0-next.2 || >=17.2.0-next.0
    Depends on vulnerable versions of @angular-devkit/architect
    Depends on vulnerable versions of @angular-devkit/core
    Depends on vulnerable versions of @angular-devkit/schematics
    Depends on vulnerable versions of @schematics/angular
    node_modules/@angular/cli
    @schematics/angular  >=17.2.0-next.0
    Depends on vulnerable versions of @angular-devkit/core
    Depends on vulnerable versions of @angular-devkit/schematics
    node_modules/@schematics/angular

[JeanMeche]

@Stargator It looks like you're running v17 which is out of LTS. Your version won't get the fix.

[alan-agius4]

@JeanMeche, that’s actually how npm audit works, it will downgrade and try to install any version including previous majors that are not “vulnerable”

[Stargator]

@alan-agius4 , I see a lot of dependencies are pinned to an exact version instead of a range like ~4.0.4 or ^4.0.4.

It seems like it would save the Angular team to allow for at least patch releases.

[alan-agius4]

@Stargator, unfortunately a lot of NPM dependencies do not follow semver and we had a lot of breakages in minors and patch versions over time. So for stability we choose to pin all of our dependencies.

[alan-agius4]

This PR was merged into the repository. The changes were merged into the following branches:

• 21.2.x: 349bd43

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