CVE-2020-7754

Name: CVE-2020-7754
Creator: NVD / NIST
Published: 2020-10-27T15:15:13.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 3.44%

Last modified Jun 17, 2026

CVE-2020-7754 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 3.44% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

3.44%

87.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Npmjs	Npm-User-Validate	< 1.0.1

References

https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204ePatch, Third Party Advisory
https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479pThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1019353Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-NPMUSERVALIDATE-1019352Exploit, Third Party Advisory
https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204ePatch, Third Party Advisory
https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479pThird Party Advisory
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1019353Exploit, Third Party Advisory
https://snyk.io/vuln/SNYK-JS-NPMUSERVALIDATE-1019352Exploit, Third Party Advisory

Timeline

Published: Oct 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-7754?

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.

How severe is CVE-2020-7754?

CVE-2020-7754 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.44% probability of exploitation in the next 30 days.

How do I fix CVE-2020-7754?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-7754?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST