Description
Fast-csv is an npm package for parsing and formatting CSVs or any other delimited value file in node. In fast-cvs before version 4.3.6 there is a possible ReDoS vulnerability (Regular Expression Denial of Service) when using ignoreEmpty option when parsing. This has been patched in `v4.3.6` You will only be affected by this if you use the `ignoreEmpty` parsing option. If you do use this option it is recommended that you upgrade to the latest version `v4.3.6` This vulnerability was found using a CodeQL query which identified `EMPTY_ROW_REGEXP` regular expression as vulnerable.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- C2FO / fast-csv< 4.3.6 – < 4.3.6
References
- VENDOR_ADVISORYhttps://github.com/C2FO/fast-csv/security/advisories/GHSA-8cv5-p934-3hwp
- MISChttps://lgtm.com/query/8609731774537641779/
- MISChttps://github.com/C2FO/fast-csv/issues/540
- PATCHhttps://github.com/C2FO/fast-csv/commit/4bbd39f26a8cd7382151ab4f5fb102234b2f829e
- MISChttps://www.npmjs.com/package/%40fast-csv/parse
- MISChttps://www.npmjs.com/package/fast-csv