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CVE-2020-8268

24
FAUCET Score

CVE-2020-8268 is a prototype pollution vulnerability in the json8-merge-patch npm package versions prior to 1.0.3, allowing attackers to inject or modify properties of the global object constructor. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity that can lead to high integrity impacts without user interaction. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.3CPE matchmatch criteria
cpe:2.3:a:json8-merge-patch_project:json8-merge-patch:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.28%
Probability of exploitation in next 30 days
EPSS Percentile
67.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0128 is in the 46th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

npmpatch availablevia ghsa
Product: json8-merge-patchFixed in: 1.0.3

Vendor Advisories (1)

npmGHSA-8v9x-9xqg-r8mrhigh

Prototype pollution in json8-merge-patch

May 10, 2021

References

hackerone.com / reports/980649
ExploitIssue TrackingThird Party Advisory