CVE-2020-26256

CVSS V2 Low 3.5 CVSS V3 Medium 6.5
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.
Overview
  • CVE ID
  • CVE-2020-26256
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-12-08T22:15:17
  • Last Modified Date
  • 2021-10-07T17:08:09
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:c2fo:fast-csv:*:*:*:*:*:node.js:*:* 1 OR 4.3.6
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:S/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • SINGLE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 3.5
  • Severity
  • LOW
  • Exploitability Score
  • 6.8
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/C2FO/fast-csv/commit/4bbd39f26a8cd7382151ab4f5fb102234b2f829e Patch Third Party Advisory
https://github.com/C2FO/fast-csv/security/advisories/GHSA-8cv5-p934-3hwp Third Party Advisory
https://www.npmjs.com/package/fast-csv Product Third Party Advisory
https://www.npmjs.com/package/@fast-csv/parse Product Third Party Advisory
https://lgtm.com/query/8609731774537641779/ Exploit Third Party Advisory
https://github.com/C2FO/fast-csv/issues/540 Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-26256
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26256
History
Created Old Value New Value Data Type Notes
2022-05-10 06:52:10 Added to TrackCVE
2022-12-05 17:46:36 2020-12-08T22:15Z 2020-12-08T22:15:17 CVE Published Date updated
2022-12-05 17:46:36 2021-10-07T17:08:09 CVE Modified Date updated
2022-12-05 17:46:36 Analyzed Vulnerability Status updated