Known exploited · Prettier
CVE-2025-54313: Prettier eslint-config-prettier Embedded Malicious Code Vulnerability
What it is
Prettier eslint-config-prettier contains an embedded malicious code vulnerability. Installing an affected package executes an install.js file that launches the node-gyp.dll malware on Windows.
- Vendor
- Prettier
- Product
- eslint-config-prettier
- Added to KEV
- January 22, 2026
- CISA due date
- February 12, 2026
- Ransomware use
- Unknown
- Weakness
- CWE-506: Embedded Malicious Code
What CISA requires
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Forensic triage
No
What to do now
- Find every instance of eslint-config-prettier you run, including the forgotten ones, and check its version against the vendor advisory.
- Apply the vendor's fix or mitigation, before February 12, 2026 if you are bound by CISA's deadline, sooner if it faces the internet.
- Assume it was tried against you already: look for signs of exploitation from the date it was added, not from the day you patched.
References
H2 Security
Not sure you are clear?
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Train the engineers who fix it
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Start freeSource: CISA Known Exploited Vulnerabilities Catalog (public domain), catalog version 2026.10.01.