Prototype pollution in arr-flatten-unflatten
Priority MEDIUM 46CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.
Summary
All versions of package arr-flatten-unflatten are vulnerable to Prototype Pollution via the constructor.
Why it matters now
EPSS 0.01916 79th 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 |
|---|---|---|---|---|---|
| — | arr-flatten-unflatten | all versions | — | No fix listed | CNA |
| — | arr-flatten-unflatten (npm) | up to 1.1.4 | — | No fix listed | GHSA-w8f3-pvx4-4c3h |
- arr-flatten-unflatten Vendor— Affected all versions Fixed in — No fix listed CNA
- arr-flatten-unflatten (npm) Vendor— Affected up to 1.1.4 Fixed in — No fix listed GHSA-w8f3-pvx4-4c3h
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:arr-flatten-unflatten_project:arr-flatten-unflatten:*:*:*:*:*:node.js:*:* | all versions | Vulnerable | Arr-flatten-unflatten Project |
- cpe:2.3:a:arr-flatten-unflatten_project:arr-flatten-unflatten:*:*:*:*:*:node.js:*:* Versions all versions Vulnerable ·Arr-flatten-unflatten Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7713
- 2026-10-03 Alias added: GHSA-w8f3-pvx4-4c3h
References
Sources
- CVE-2020-7713 · CVE Program
- CVE-2020-7713 · NVD
- FIRST EPSS
- GHSA-w8f3-pvx4-4c3h · 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