Regular expression denial of service (ReDoS) in es6-crawler-detect
Priority LOW 36CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
This affects the package es6-crawler-detect before 3.1.3. No limitation of user agent string length supplied to regex operators.
Why it matters now
EPSS 0.01498 74th percentileScored 2026-11-07
Fix Fixed es6-crawler-detect: 3.1.3es6-crawler-detect (npm): 3.1.3
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | es6-crawler-detect | before 3.1.3 | 3.1.3 | Patch available | CNA |
| — | es6-crawler-detect (npm) | before 3.1.3 | 3.1.3 | Patch available | GHSA-jxg6-fhwc-9v9c |
- es6-crawler-detect Vendor— Affected before 3.1.3 Fixed in 3.1.3 Patch available CNA
- es6-crawler-detect (npm) Vendor— Affected before 3.1.3 Fixed in 3.1.3 Patch available GHSA-jxg6-fhwc-9v9c
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:crawlerdetect_project:crawlerdetect:*:*:*:*:*:node.js:*:* | before 3.1.3 | Vulnerable | Crawlerdetect Project |
- cpe:2.3:a:crawlerdetect_project:crawlerdetect:*:*:*:*:*:node.js:*:* Versions before 3.1.3 Vulnerable ·Crawlerdetect Project
Remediation
- Fix · CNA es6-crawler-detect Fixed in 3.1.3
- Fix · GHSA-jxg6-fhwc-9v9c es6-crawler-detect (npm) Fixed in 3.1.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-28501
- 2026-10-03 Alias added: GHSA-jxg6-fhwc-9v9c
References
Sources
- CVE-2020-28501 · CVE Program
- CVE-2020-28501 · NVD
- FIRST EPSS
- GHSA-jxg6-fhwc-9v9c · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences