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@q1blue q1blue commented Jan 23, 2026

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Snyk has created this PR to fix 2 vulnerabilities in the yarn dependencies of this project.

Snyk changed the following file(s):

  • code/frameworks/preact-webpack5/package.json

Note for zero-installs users

If you are using the Yarn feature zero-installs that was introduced in Yarn V2, note that this PR does not update the .yarn/cache/ directory meaning this code cannot be pulled and immediately developed on as one would expect for a zero-install project - you will need to run yarn to update the contents of the ./yarn/cache directory.
If you are not using zero-install you can ignore this as your flow should likely be unchanged.

⚠️ Warning
Failed to update the yarn.lock, please update manually before merging.

Vulnerabilities that will be fixed with an upgrade:

Issue Score
medium severity Improper Handling of Unicode Encoding
SNYK-JS-TAR-15038581
  210  
medium severity Prototype Pollution
SNYK-JS-LODASH-15053838
  88  

Important

  • Check the changes in this PR to ensure they won't cause issues with your project.
  • Max score is 1000. Note that the real score may have changed since the PR was raised.
  • This PR was automatically created by Snyk using the credentials of a real user.

Note: You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs.

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🦉 Prototype Pollution

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Summary of Changes

Hello @q1blue, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request automates a critical security update, upgrading a core Storybook dependency to mitigate known vulnerabilities. The primary goal is to enhance the project's security posture by incorporating the latest patched version of @storybook/builder-webpack5. Reviewers should be aware of the necessary manual step to update the yarn.lock file.

Highlights

  • Security Upgrade: This pull request, automatically generated by Snyk, upgrades the @storybook/builder-webpack5 dependency from 0.0.0-use.local to 7.1.0.
  • Vulnerability Fixes: The upgrade addresses two medium-severity vulnerabilities: 'Improper Handling of Unicode Encoding' (SNYK-JS-TAR-15038581) and 'Prototype Pollution' (SNYK-JS-LODASH-15053838).
  • Manual yarn.lock Update Required: Snyk reported a failure to update the yarn.lock file, requiring a manual update before merging, especially for projects using Yarn's zero-installs feature.
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Code Review

This pull request, automatically generated by Snyk, aims to fix two security vulnerabilities by upgrading @storybook/builder-webpack5. However, the proposed change of pinning the version to 7.1.0 is incorrect for this monorepo setup. It replaces a local workspace dependency (workspace:*) with a fixed, outdated public version, which is a significant downgrade from the current workspace version (8.3.0-beta.3). This change will likely break the build and introduce inconsistencies. The warning in the PR description about the failure to update yarn.lock further indicates that this automated change is incompatible with the project's structure. I have added a critical comment suggesting to revert this change. The vulnerabilities should be addressed by analyzing the dependency tree of the local workspace package and updating its transitive dependencies if necessary.

},
"dependencies": {
"@storybook/builder-webpack5": "workspace:*",
"@storybook/builder-webpack5": "7.1.0",

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critical

This change replaces a local workspace dependency (workspace:*) with a fixed version from the public registry. This is likely to break the monorepo's dependency structure and cause build failures. The workspace:* protocol ensures that the local version of @storybook/builder-webpack5 from this repository is used, which is currently at version 8.3.0-beta.3.

Pinning to 7.1.0 is a significant downgrade and will introduce an outdated version of the package, likely causing inconsistencies and breaking changes. The security vulnerabilities Snyk is trying to fix may already be resolved in the newer workspace version.

It's recommended to revert this change. The vulnerabilities should be investigated within the context of the monorepo's dependency tree, possibly by updating transitive dependencies if needed, rather than changing this direct dependency linkage.

Suggested change
"@storybook/builder-webpack5": "7.1.0",
"@storybook/builder-webpack5": "workspace:*",

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3 participants