CVE-2020-26256 Denial of service in fast-csv

2020-12-0821:45:19

CWE-400

GitHub_M

www.cve.org

5.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

0.008 Low

EPSS

Percentile

81.9%

JSON

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.

CNA Affected

[
  {
    "product": "fast-csv",
    "vendor": "C2FO",
    "versions": [
      {
        "status": "affected",
        "version": "< 4.3.6"
      }
    ]
  }
]