TI-2020-06685 Aliases CVE-2020-8268 GHSA-8v9x-9xqg-r8mr

Improper input validation in json8-merge-patch

LOW 35CWE-471Published 2020-11-09 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · High · None
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

Prototype pollution vulnerability in json8-merge-patch npm package < 1.0.3 may allow attackers to inject or modify methods and properties of the global object constructor.

Why it matters now

EPSS 0.01293 70th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed json8-merge-patch (npm): 1.0.3

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
—	json8-merge-patch	Fixed Version: 1.0.3	—	No fix listed	CNA
—	json8-merge-patch (npm)	before 1.0.3	1.0.3	Patch available	GHSA-8v9x-9xqg-r8mr

json8-merge-patch Vendor— Affected Fixed Version: 1.0.3 Fixed in — No fix listed CNA
json8-merge-patch (npm) Vendor— Affected before 1.0.3 Fixed in 1.0.3 Patch available GHSA-8v9x-9xqg-r8mr

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:json8-merge-patch_project:json8-merge-patch::::::node.js::*	before 1.0.3	Vulnerable	Json8-merge-patch Project

cpe:2.3:a:json8-merge-patch_project:json8-merge-patch:*:*:*:*:*:node.js:*:* Versions before 1.0.3 Vulnerable ·Json8-merge-patch Project

Remediation

Fix · GHSA-8v9x-9xqg-r8mr json8-merge-patch (npm) Fixed in 1.0.3 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2020-8268
2026-10-03 Alias added: GHSA-8v9x-9xqg-r8mr

References

Exploit 1

https://hackerone.com/reports/980649

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2020-8268

Other 3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences