CVE-2021-23490

Public Exploit
Regular Expression Denial of Service (ReDoS)

Description

The package parse-link-header before 2.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the checkHeader function.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.39%
Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io
Affected: n/a parse-link-header
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-PARSELINKHEADER-1582783 exploit third party advisory patch
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2321973 exploit third party advisory patch
https://github.com/thlorenz/parse-link-header/commit/72f05c717b3f129c5331a07bf300ed8886eb8ae1 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-23490?
CVE-2021-23490 has been scored as a high severity vulnerability.
How to fix CVE-2021-23490?
To fix CVE-2021-23490, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-23490 being actively exploited in the wild?
It is possible that CVE-2021-23490 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23490?
CVE-2021-23490 affects n/a parse-link-header.
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