CVE-2020-26256
Denial of service in fast-csv
MEDIUM 6.5EPSS 1.5%
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.
- Affected
- C2FO · fast-csv
- CVSS v3.1 NVD
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS v3.1 GITHUB
- 5.7 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 3.5 LOW
AV:N/AC:M/Au:S/C:N/I:N/A:P - EPSS
- 1.54% chance of exploitation in the next 30 days, 74th percentile
- Published
- 2020-12-08
- Updated
- 2024-08-04
Proof-of-concept exploits (1)
- ossf-cve-benchmark/CVE-2020-262560★ · 2020-12-09
Security advisories
- C2FO/fast-csv/issues/540
- C2FO/fast-csv/security/advisories/GHSA-8cv5-p934-3hwp
- https://lgtm.com/query/8609731774537641779
- https://www.npmjs.com/package/fast-csv
- advisories/GHSA-8cv5-p934-3hwp