Home/CVE/This affects the package npm-user-validate before 1.0.1. The regex that validates user emails took exponentially longer
CVE

CVE-2020-7754

This affects the package npm-user-validate before 1.0.1. The regex that validates user emails took exponentially longer

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.

HIGH · CVSS 7.5 EPSS 0.01798
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

1
npmjs npm-user-validate< 1.0.1
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm npm-user-validate HIGH fixed in 1.0.1
⚠

Public Exploits & PoCs

2
pocsnyk.io · SNYK-JAVA-ORGWEBJARSNPM-1019353snyk.io
pocsnyk.io · SNYK-JS-NPMUSERVALIDATE-1019352snyk.io
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · report@snyk.io
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Oct 2020 · 03:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

6
rhsaRHSA-2021:0548Moderate
rhsaRHSA-2021:0549Moderate
rhsaRHSA-2021:0421Moderate
rhsaRHSA-2021:0521Moderate
rhsaRHSA-2021:0551Moderate
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204ePatchThird Party Advisory
https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479pThird Party Advisory
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