CVE-2021-23364

Public Exploit
Regular Expression Denial of Service (ReDoS)

Description

The package browserslist from 4.0.0 and before 4.16.5 are vulnerable to Regular Expression Denial of Service (ReDoS) during parsing of queries.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.34%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io
Affected: n/a browserslist
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-BROWSERSLIST-1090194 exploit third party advisory patch
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1277182 exploit third party advisory patch
https://github.com/browserslist/browserslist/blob/e82f32d1d4100d6bc79ea0b6b6a2d281a561e33c/index.js%23L472-L474 broken link
https://github.com/browserslist/browserslist/commit/c091916910dfe0b5fd61caad96083c6709b02d98 third party advisory patch
https://github.com/browserslist/browserslist/pull/593 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-23364?
CVE-2021-23364 has been scored as a medium severity vulnerability.
How to fix CVE-2021-23364?
To fix CVE-2021-23364, 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-2021-23364 being actively exploited in the wild?
It is possible that CVE-2021-23364 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-2021-23364?
CVE-2021-23364 affects n/a browserslist.
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