Stylelint has vulnerability in semver dependency

Summary

Our meow dependency (which we use for our CLI) depended on [email protected] . A vulnerability in this version of semver was recently identified and surfaced by npm audit:

Regular Expression Denial of Service - https://github.com/advisories/GHSA-c2qf-rxjj-qqgw

Details

Original post by the reporter:

"my npm audit show the report

semver <7.5.2 Severity: moderate semver vulnerable to Regular Expression Denial of Service - https://github.com/advisories/GHSA-c2qf-rxjj-qqgw No fix available

And my dependencies tree for semver show your package

├─┬ [email protected] │ └─┬ [email protected] │ └─┬ [email protected] │ └─┬ [email protected] │ └─┬ [email protected] │ └── [email protected] deduped

I found that [email protected] contains normalize-package-data@5 and I can fix this vulnerability because it uses semver@7. But I can't update meow to the new major version because your package doesn't allow it."

Update your package to use the 'meow' version >=10"

PoC

N/A

Impact

We anticipate the impact to be low as Stylelint is a dev tool and meow is only used on the CLI pathway.

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⬇️ EDITED AFTER PUBLISHED ⬇️

Security fix backported to older semver versions

The same security fix has been backported to older semver versions of 5.x and 6.x. See the CVE-2022-25883 details.

So, you can fix this vulnerability by just updating semver in your project's dependency tree, instead of updating stylelint. For details, see the example:

package.json:

{
  "dependencies": {
    "stylelint": "15.10.0"
  }
}