eslint-config-prettier, eslint-plugin-prettier, synckit, @pkgr/core, napi-postinstall have embedded malicious code
CISA confirms exploitation of this vulnerability in real attacks. Prioritise checking whether your application is affected. CISA KEV · CC0 1.0
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | eslint-config-prettier | >= 8.10.1, < 8.10.2, >= 9.1.1, < 9.1.2, >= 10.1.6, < 10.1.8 | 8.10.2, 9.1.2, 10.1.8 |
| npm package | eslint-plugin-prettier | >= 4.2.2, < 4.2.4 | 4.2.4 |
| npm package | got-fetch | >= 5.1.11, < 6.0.0 | 6.0.0 |
| npm package | napi-postinstall | >= 0.3.1, < 0.3.2 | 0.3.2 |
| npm package | @pkgr/core | >= 0.2.8, < 0.2.9 | 0.2.9 |
| npm package | synckit | >= 0.11.9, < 0.11.10 | 0.11.10 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-54313
- https://github.com/prettier/eslint-config-prettier/issues/339
- https://github.com/prettier/eslint-config-prettier/commit/9b0b0a47ec28a7a83cf65e8436a8776910379385
- https://github.com/prettier/eslint-plugin-prettier/commit/ec39dd4400f10c52d10cd991c10fa8de51ceb854
- https://github.com/un-ts/napi-postinstall/commit/38b4e95cf554e2549b9e1e2c4ff6bff4da9a65f9
- https://github.com/un-ts/pkgr/commit/e1420c99e44d8a2ae949381f9fbe1af5ba9cb1dd
- https://github.com/un-ts/synckit/commit/8f2ee32d4f75736a1c8d7e1101190a71e48909e4
- https://www.stepsecurity.io/blog/supply-chain-security-alert-eslint-config-prettier-package-shows-signs-of-compromise
- https://www.npmjs.com/package/eslint-config-prettier?activeTab=versions
- https://www.endorlabs.com/learn/cve-2025-54313-eslint-config-prettier-compromise----high-severity-but-windows-only
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54313
- https://www.bleepingcomputer.com/news/security/popular-npm-linter-packages-hijacked-via-phishing-to-drop-malware
- https://socket.dev/blog/npm-phishing-campaign-leads-to-prettier-tooling-packages-compromise
- https://secure.software/npm/packages/got-fetch
- https://news.ycombinator.com/item?id=44609732
- https://news.ycombinator.com/item?id=44608811
- https://github.com/prettier/eslint-config-prettier
- https://github.com/community-scripts/ProxmoxVE/discussions/6115
- https://checkmarx.com/zero-post/supply-chain-phishing-campaign-drops-more-malware-into-npm-got-fetch-5-1
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N- Weakness (CWE)
CWE-506- Platform
- npm
- Package
eslint-config-prettier, eslint-plugin-prettier, got-fetch- Disclosed
- 19.07.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-f29h-pxvx-f335 - CC BY 4.0
Vulnerability history: eslint-config-prettier
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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