Regular expression denial of service (ReDoS) in parse-link-header
Priority LOW 37CWE-1333Published · 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 · CNA. Fix status from CNA and GitHub. Impact type from CWE-1333.
Summary
The package parse-link-header before 2.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the checkHeader function.
Why it matters now
EPSS 0.01891 79th percentileScored 2026-11-07
Fix Fixed parse-link-header: 2.0.0parse-link-header (npm): 2.0.0
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 |
|---|---|---|---|---|---|
| — | parse-link-header | before 2.0.0 | 2.0.0 | Patch available | CNA |
| — | parse-link-header (npm) | before 2.0.0 | 2.0.0 | Patch available | GHSA-q674-xm3x-2926 |
- parse-link-header Vendor— Affected before 2.0.0 Fixed in 2.0.0 Patch available CNA
- parse-link-header (npm) Vendor— Affected before 2.0.0 Fixed in 2.0.0 Patch available GHSA-q674-xm3x-2926
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:parse-link-header_project:parse-link-header:*:*:*:*:*:node.js:*:* | before 2.0.0 | Vulnerable | Parse-link-header Project |
- cpe:2.3:a:parse-link-header_project:parse-link-header:*:*:*:*:*:node.js:*:* Versions before 2.0.0 Vulnerable ·Parse-link-header Project
Remediation
- Fix · CNA parse-link-header Fixed in 2.0.0
- Fix · GHSA-q674-xm3x-2926 parse-link-header (npm) Fixed in 2.0.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23490
- 2026-10-03 Alias added: GHSA-q674-xm3x-2926
References
Sources
- CVE-2021-23490 · CVE Program
- CVE-2021-23490 · NVD
- FIRST EPSS
- GHSA-q674-xm3x-2926 · GitHub Advisory Database · CC BY 4.0
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