CVE-2020-7754
Regular Expression Denial of Service (ReDoS)
HIGH
7.5
CVSS Score
Published: October 27, 2020 at 03:05 PM UTC
Updated: June 17, 2026 at 03:25 AM UTC
1 product affected across 1 vendorNpm User Validate
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Severity
HIGH7.5
Exploit prediction
EPSS 3%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 1.0.1
Affected range stops below 1.0.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (4)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/npm/npm-user-validate/commit/c8a87dac1a4cc6988b5418f30411a8669bef204ex_refsource_MISCThird Party Advisory
Source: [email protected]
https://github.com/npm/npm-user-validate/security/advisories/GHSA-xgh6-85xh-479px_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1019353x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-NPMUSERVALIDATE-1019352CVSS
7.5HIGHsnyk
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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