CVE-2020-28501
Regular Expression Denial of Service (ReDoS)
HIGH
7.5
CVSS Score
Published: March 22, 2021 at 12:10 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
1 product affected across 1 vendorCrawlerdetect
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
Description
This affects the package es6-crawler-detect before 3.1.3. No limitation of user agent string length supplied to regex operators.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 3.1.3
Affected range stops below 3.1.3, 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 (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/JefferyHus/es6-crawler-detect/pull/27x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://snyk.io/vuln/SNYK-JS-ES6CRAWLERDETECT-1051529CVSS
- 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-Other
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