CVE-2021-23382

Public Exploit
Regular Expression Denial of Service (ReDoS)

Description

The package postcss before 8.2.13 are vulnerable to Regular Expression Denial of Service (ReDoS) via getAnnotationURL() and loadAnnotation() in lib/previous-map.js. The vulnerable regexes are caused mainly by the sub-pattern \/\*\s* sourceMappingURL=(.*).

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.07%
Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io
Affected: n/a postcss
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-JS-POSTCSS-1255640 third party advisory patch exploit
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1255641 third party advisory patch exploit
https://github.com/postcss/postcss/commit/2b1d04c867995e55124e0a165b7c6622c1735956 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-23382?
CVE-2021-23382 has been scored as a medium severity vulnerability.
How to fix CVE-2021-23382?
To fix CVE-2021-23382, 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-2021-23382 being actively exploited in the wild?
It is possible that CVE-2021-23382 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-2021-23382?
CVE-2021-23382 affects n/a postcss.
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