My React App has unfixable High Severity warnings, how do I fix this?

Question

• I cloned my repo for a react app.
• Ran npm i
• Received 3 high severity warnings.
• On attempt to fix (npm audit fix --force) I get 31 vulnerabilities in total

Here are the warnings:

npm WARN deprecated [email protected]: request-promise-native has been deprecated because it extends the now deprecated request package, see https://github.com/request/request/issues/3142
npm WARN deprecated @hapi/[email protected]: This version has been deprecated and is no longer supported or maintained
npm WARN deprecated @hapi/[email protected]: This version has been deprecated and is no longer supported or maintained
npm WARN deprecated [email protected]: Please see https://github.com/lydell/urix#deprecated
npm WARN deprecated [email protected]: this library is no longer supported
npm WARN deprecated [email protected]: https://github.com/lydell/resolve-url#deprecated
npm WARN deprecated [email protected]: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN deprecated [email protected]: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
npm WARN deprecated [email protected]: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN deprecated [email protected]: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
npm WARN deprecated [email protected]: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates.
npm WARN deprecated @hapi/[email protected]: Moved to 'npm install @sideway/address'
npm WARN deprecated [email protected]: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-babel.
npm WARN deprecated [email protected]: request has been deprecated, see https://github.com/request/request/issues/3142
npm WARN deprecated @hapi/[email protected]: This version has been deprecated and is no longer supported or maintained
npm WARN deprecated @hapi/[email protected]: Switch to 'npm install joi'
npm WARN deprecated [email protected]: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.

added 1988 packages, and audited 1988 packages in 8s

126 packages are looking for funding
  run `npm fund` for details

3 high severity vulnerabilities

To address all issues (including breaking changes), run:
  npm audit fix --force

Run `npm audit` for details.

This is what the audit shows:

# npm audit report

immer  <8.0.1
Severity: high
Prototype Pollution - https://npmjs.com/advisories/1603
fix available via `npm audit fix --force`
Will install [email protected], which is a breaking change
node_modules/immer
  react-dev-utils  >=6.0.6-next.9b4009d7
  Depends on vulnerable versions of immer
  node_modules/react-dev-utils
    react-scripts  >=2.0.6-next.9b4009d7
    Depends on vulnerable versions of react-dev-utils
    node_modules/react-scripts

3 high severity vulnerabilities

To address all issues (including breaking changes), run:
  npm audit fix --force

Answer 1

I fought over this issue for a few hours yesterday and this morning and found this thread which seems to be the cause:

https://github.com/facebook/create-react-app/issues/10411

As well as this proposed fix:

https://github.com/facebook/create-react-app/pull/10412

It looks like it's a dependency issue with immer, react-scripts, and react-dev-tools. They say they will try and push out an update this weekend so I would look forward to that sooner than later.