GHSA-6g33-8w2q-4hxv

robots-txt-guard Inefficient Regular Expression Complexity vulnerability

Source: GitHub Advisory Database (reviewed) High CVE-2021-4305

Packages

Ecosystem	Package	Affected	Fixed in
npm	robots-txt-guard	< 1.0.2	1.0.2

Details

As written in the advisory (Markdown source, shown as plain text).

A vulnerability was found in Woorank robots-txt-guard. It has been rated as problematic. Affected by this issue is the function makePathPattern of the file lib/patterns.js. The manipulation of the argument pattern leads to inefficient regular expression complexity. The exploit has been disclosed to the public and may be used. The name of the patch is c03827cd2f9933619c23894ce7c98401ea824020. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-217448.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2021-4305 advisory
https://github.com/Woorank/robots-txt-guard/pull/4 web
https://github.com/Woorank/robots-txt-guard/commit/c03827cd2f9933619c23894ce7c98401ea824020 web
https://github.com/Woorank/robots-txt-guard package
https://vuldb.com/?ctiid.217448 web
https://vuldb.com/?id.217448 web