. Advertisement .
..3..
. Advertisement .
..4..
The following error may appear when you try to run the tool: postcss 7.0.0 – 8.2.9 Severity: moderate Regular Expression Denial of Service in ReactJs.
This is a common error made by all coders. So, why does it happen, and how could it be resolved? We’ll talk about everything with you.
Why Does The: postcss 7.0.0 – 8.2.9 Severity: moderate Regular Expression Denial of Service in ReactJs Occur?
Recently, when you create one new project with create-react-app, you get warnings about a postcss vulnerability right away.
Your issue is that you can no longer run builds because they fail due to the vulnerability. The problem has been fixed in postcss v8.2.10, but it persists when creating new projects because react scripts have not been upgraded. This warning was discovered in your stack track.
postcss 7.0.0 – 8.2.9 Severity: moderate Regular Expression Denial of Service
Some Fundamental Methods For ”postcss 7.0.0 – 8.2.9 Severity: moderate Regular Expression Denial of Service in ReactJs” Error
And, you know what, you might be able to solve the above error with some simple ways. You can better understand these responses by using the cases below.
Method 1: Use the npm-force-resolutions package
To resolve this error ”postcss 7.0.0 – 8.2.9 Severity: moderate Regular Expression Denial of Service in ReactJs”, the first thing you need to do is using the npm-force-resolutions package. To use the resolutions you created, you must force them to be used by including this script in the package. json.
"scripts": {
"preinstall": "npx npm-force-resolutions"
}
Then, run npm install, which should overwrite all nested dependencies. Now, your error has been resolved.
Method 2: Update to version 8.2.10 or higher
PostCSS is a tool for style transformation for JS plugins. These plugins can assist variables, mixins, change future CSS syntax, inline pictures, and more. They als can lint your CSS. Industry leaders like Wikipedia, Twitter, Alibaba, and JetBrains all use PostCSS. One of the most widely used CSS processors is the Autoprefixer PostCSS plugin. An API is provided by PostCSS and it lets you examine and change the rules in a CSS file (by converting them into an Abstract Syntax Tree). Then, plugins can use this API to perform a variety of beneficial tasks, like detecting mistakes automatically or adding vendor prefixes.
However, before 8.2.10, postcss is vulnerable to Regular Expression Denial of Service (ReDoS) during source map parsing. As a result you need to update to version 8.2.10 or higher. This also is the second method that we provide for you to solve your problem.
Method 3: Delete the node modules and package-lock.json
You will able to get it working with no vulnerabilities by deleting the node modules and package-lock.json and following the advice. The only problem with forcing this resolution is that you get an error when running the npm audit fix due to the invalid package tree.
You’ll have to wait for the patch, but this will suffice for now. You can also use yarn compatible with the package’s resolutions. json.
We believe that the above solutions will be beneficial to all readers.
Conclusion
The remedies presented above have been the most effective for individuals who are still perplexed by this error: postcss 7.0.0 – 8.2.9 Severity: moderate Regular Expression Denial of Service in ReactJs.
When you still seek help or have other questions, we have a big community where everybody is always willing to help you. Lastly, we hope all readers have a fantastic day with innovative code solutions.
Read more
→ Resolve The Error: react devtools console.log() from react_devtools_backend.js:4049 in Reactjs
Leave a comment