Prototype pollution in nested-object-assign
Priority LOW 36CWE-1321Published · 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-400.
Summary
The package nested-object-assign before 1.0.4 are vulnerable to Prototype Pollution via the default function, as demonstrated by running the PoC below.
Why it matters now
EPSS 0.01539 75th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed nested-object-assign: 1.0.4nested-object-assign (npm): 1.0.4
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 |
|---|---|---|---|---|---|
| — | nested-object-assign | before 1.0.4 | 1.0.4 | Patch available | CNA |
| — | nested-object-assign (npm) | before 1.0.4 | 1.0.4 | Patch available | GHSA-c497-v8pv-ch6x |
- nested-object-assign Vendor— Affected before 1.0.4 Fixed in 1.0.4 Patch available CNA
- nested-object-assign (npm) Vendor— Affected before 1.0.4 Fixed in 1.0.4 Patch available GHSA-c497-v8pv-ch6x
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:getadigital:nested-object-assign:*:*:*:*:*:node.js:*:* | before 1.0.4 | Vulnerable | Getadigital |
- cpe:2.3:a:getadigital:nested-object-assign:*:*:*:*:*:node.js:*:* Versions before 1.0.4 Vulnerable ·Getadigital
Remediation
- Fix · CNA nested-object-assign Fixed in 1.0.4
- Fix · GHSA-c497-v8pv-ch6x nested-object-assign (npm) Fixed in 1.0.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23329
- 2026-10-03 Alias added: GHSA-c497-v8pv-ch6x
References
Sources
- CVE-2021-23329 · CVE Program
- CVE-2021-23329 · NVD
- FIRST EPSS
- GHSA-c497-v8pv-ch6x · GitHub Advisory Database · CC BY 4.0
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