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HIGH

CVE-2020-7754

CVSS v3

7.5

HIGH

EPSS Score

3.5 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • npm-user-validatenpmall versions · fixed in 1.0.1
  • nodejs-nodemonAlmaLinux:8all versions · fixed in 2.0.3-1.module_el8.4.0+2521+c668cc9f
  • nodejs-packagingAlmaLinux:8all versions · fixed in 23-3.module_el8.4.0+2522+3bd42762

Vendor advisories

  • CVE-2020-7754 Red Hat Product Security242 products fixed · 4 known affected

    nodejs-npm-user-validate: improper input validation when validating user emails leads to ReDoS

    kibana as a component of Red Hat OpenShift Container Platform 3.11 · kibana.src as a component of Red Hat OpenShift Container Platform 3.11 · kibana as a component of Red Hat OpenShift Container Platform 4

  • RHSA-2021:0551 Red Hat Product Security30 products fixed

    Red Hat Security Advisory: nodejs:14 security and bug fix update

  • RHSA-2021:0549 Red Hat Product Security30 products fixed

    Red Hat Security Advisory: nodejs:12 security update

  • RHSA-2021:0548 Red Hat Product Security30 products fixed

    Red Hat Security Advisory: nodejs:10 security update

  • RHSA-2021:0521 Red Hat Product Security48 products fixed

    Red Hat Security Advisory: rh-nodejs10-nodejs security update

  • RHSA-2021:0485 Red Hat Product Security56 products fixed

    Red Hat Security Advisory: rh-nodejs12-nodejs security update

1 more advisory

Full record on NVD

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.

Technical details

Published
2020-10-27

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.

Is CVE-2020-7754 actively exploited?

Active exploitation of CVE-2020-7754 has not been confirmed. Its EPSS score was 3.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-7754?

CVE-2020-7754 has a CVSS v3 base score of 7.5 (HIGH severity).

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