CVE-2020-7754

Public Exploit

Regular Expression Denial of Service (ReDoS)

Description

This affects the package npm-user-validate before 1.0.1. The regex that validates user emails took exponentially longer to process long input strings beginning with @ characters.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 1.63% Top 20%

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

Affected: n/a npm-user-validate

References

Link	Tags
https://snyk.io/vuln/SNYK-JS-NPMUSERVALIDATE-1019352	third party advisory exploit
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1019353	third party advisory exploit
https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479p	third party advisory
https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204e	third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2020-7754?: CVE-2020-7754 has been scored as a high severity vulnerability.
How to fix CVE-2020-7754?: To fix CVE-2020-7754, 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-2020-7754 being actively exploited in the wild?: It is possible that CVE-2020-7754 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-7754?: CVE-2020-7754 affects n/a npm-user-validate.

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