https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-09T18:31:56.284975+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-45999 EUVD-2026-45999 2026-10-09T18:31:56.320577+00:00 EUVD-2026-45999 https://cve.radiocsirt.org/vuln/fkie_cve-2020-26256 fkie_cve-2020-26256 2026-10-09T18:31:56.320642+00:00

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.

 https://cve.radiocsirt.org/vuln/ghsa-8cv5-p934-3hwp GHSA-8cv5-p934-3hwp — Denial of service in fast-csv 2026-10-09T18:31:56.320681+00:00

Affected: npm: fast-csv, npm: @fast-csv/parse

### Impact Possible ReDoS (Regular Expression Denial of Service) when using `ignoreEmpty` option when parsing.

### Patches This has been patched in `v4.3.6`

### Workarounds 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`

### References

This vulnerability was found using a [CodeQL](https://securitylab.github.com/tools/codeql) query which identified `EMPTY_ROW_REGEXP` regular expression as vulnerable. [Link to query run](https://lgtm.com/query/8609731774537641779/).

### For more information If you have any questions or comments about this advisory: * Open an issue in [fast-csv](https://github.com/C2FO/fast-csv)

 https://cve.radiocsirt.org/vuln/gsd-2020-26256 gsd-2020-26256 2026-10-09T18:31:56.320714+00:00 gsd-2020-26256