CVE-2020-26256
5.7 · MEDIUMOverview
CVE-2020-26256 is a medium-severity vulnerability affecting c2fo fast-csv. It was published on December 8, 2020 and has a CVSS 3.1 base score of 5.7 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.7, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from c2fo. Update fast-csv to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| c2fo | fast-csv | >= 0, < 4.3.6 | Affected |
References
Frequently Asked Questions
What is CVE-2020-26256?
CVE-2020-26256 is a medium-severity vulnerability affecting c2fo fast-csv. It was published on December 8, 2020 and has a CVSS 3.1 base score of 5.7 (MEDIUM).
How severe is CVE-2020-26256?
This vulnerability has a CVSS 3.1 base score of 5.7, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-26256?
Check the references section for vendor advisories and patches from c2fo. Update fast-csv to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-26256?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-26256 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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