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eslint-config-prettier, eslint-plugin-prettier, synckit, @pkgr/core, napi-postinstall have embedded malicious code

High severity GitHub Reviewed Published Jul 19, 2025 to the GitHub Advisory Database • Updated Jan 22, 2026

Package

npm @pkgr/core (npm)

Affected versions

= 0.2.8

Patched versions

0.2.9
npm eslint-config-prettier (npm)
= 8.10.1
= 9.1.1
>= 10.1.6, <= 10.1.7
8.10.2
9.1.2
10.1.8
npm eslint-plugin-prettier (npm)
>= 4.2.2, <= 4.2.3
4.2.4
npm got-fetch (npm)
>= 5.1.11, <= 5.1.12
6.0.0
npm napi-postinstall (npm)
= 0.3.1
0.3.2
npm synckit (npm)
= 0.11.9
0.11.10

Description

eslint-config-prettier 8.10.1, 9.1.1, 10.1.6, and 10.1.7 has embedded malicious code for a supply chain compromise. Installing an affected package executes an install.js file that launches the node-gyp.dll malware on Windows.

References

Published by the National Vulnerability Database Jul 19, 2025
Published to the GitHub Advisory Database Jul 19, 2025
Reviewed Jul 21, 2025
Last updated Jan 22, 2026

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(5th percentile)

Weaknesses

Embedded Malicious Code

The product contains code that appears to be malicious in nature. Learn more on MITRE.

CVE ID

CVE-2025-54313

GHSA ID

GHSA-f29h-pxvx-f335

Source code

Credits

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