CVE-2021-23346

Public Exploit

Regular Expression Denial of Service (ReDoS)

Description

This affects the package html-parse-stringify before 2.0.1; all versions of package html-parse-stringify2. Sending certain input could cause one of the regular expressions that is used for parsing to backtrack, freezing the process.

4.8

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.48%

Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory snyk.io Third-Party Advisory snyk.io Third-Party Advisory snyk.io

Affected: n/a html-parse-stringify

Affected: n/a html-parse-stringify2

References

Link	Tags
https://snyk.io/vuln/SNYK-JS-HTMLPARSESTRINGIFY-1079306	patch third party advisory exploit
https://snyk.io/vuln/SNYK-JS-HTMLPARSESTRINGIFY2-1079307	patch third party advisory exploit
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1080633	patch third party advisory exploit
https://github.com/rayd/html-parse-stringify2/blob/master/lib/parse.js%23L2	third party advisory broken link
https://github.com/HenrikJoreteg/html-parse-stringify/blob/master/lib/parse.js%23L2	third party advisory broken link
https://github.com/HenrikJoreteg/html-parse-stringify/commit/c7274a48e59c92b2b7e906fedf9065159e73fe12	third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-23346?: CVE-2021-23346 has been scored as a medium severity vulnerability.
How to fix CVE-2021-23346?: To fix CVE-2021-23346, 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-2021-23346 being actively exploited in the wild?: It is possible that CVE-2021-23346 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-2021-23346?: CVE-2021-23346 affects n/a html-parse-stringify, n/a html-parse-stringify2.

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