Regular expression denial of service (ReDoS) in express-validators
Priority LOW 27CWE-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 · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
All versions of package express-validators are vulnerable to Regular Expression Denial of Service (ReDoS) when validating specifically-crafted invalid urls.
Why it matters now
EPSS 0.0164 76th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | express-validators | all versions | — | No fix listed | CNA |
| — | express-validators (npm) | up to 1.0.4 | — | No fix listed | GHSA-cf2x-rqc8-grfq |
- express-validators Vendor— Affected all versions Fixed in — No fix listed CNA
- express-validators (npm) Vendor— Affected up to 1.0.4 Fixed in — No fix listed GHSA-cf2x-rqc8-grfq
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:express-validators_project:express-validators:*:*:*:*:*:node.js:*:* | all versions | Vulnerable | Express-validators Project |
- cpe:2.3:a:express-validators_project:express-validators:*:*:*:*:*:node.js:*:* Versions all versions Vulnerable ·Express-validators Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7767
- 2026-10-03 Alias added: GHSA-cf2x-rqc8-grfq
References
Sources
- CVE-2020-7767 · CVE Program
- CVE-2020-7767 · NVD
- FIRST EPSS
- GHSA-cf2x-rqc8-grfq · 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