Is CVE-2020-26256 in the CISA KEV catalog?

No. CVE-2020-26256 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-26256?

CVE-2020-26256 has a CVSS v3 base score of 5.7 (MEDIUM).

What is the EPSS score for CVE-2020-26256?

CVE-2020-26256 has an EPSS score of 1.53% (72th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-26256?

Upgrade fast-csv to 4.3.6 or later.

CVE & CISA-KEV Catalog

CVE-2020-26256

MEDIUMEPSS 72th pctl

5.7

CVSS v3

NVD

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.

CWE-400Resource Exhaustion

How to fix

Remediation Available

fast-csvNVD

Affected:< 4.3.6Fixed in:4.3.6CVE-2020-26256derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.53%probability of exploitation in 30 days

72ndpercentile

Elevated risk: more likely to be exploited than 72% of all known CVEs.

References

Patch1

github.com

Exploit1

lgtm.com

Third-Party Advisory3

Other references1

npmjs.com

Related Vulnerabilities

Other CWE-400 (Resource Exhaustion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-44487	High	7.5	100%	KEV	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2011-3192	High	7.8	99%	-	Fix
CVE-2019-11478	Medium	5.3	95%	-	Fix
CVE-2024-25617	Medium	5.3	89%	-	Fix
CVE-2018-1000115	High	7.5	89%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.