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Exploited vulnerability · CISA KEV

Is CVE-2025-54313 exploited? Yes: in CISA KEV since 22 Jan 2026

Gociux · Prettier eslint-config-prettier · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2025-54313, Prettier eslint-config-prettier Embedded Malicious Code Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 22 Jan 2026, 187 days after it was published. It affects Prettier eslint-config-prettier. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 22 Jan 2026
ransomwareNot knownno confirmed use
EPSStop 10%more likely than most to be exploited
severity7.5CVSS 3.1 · high
US federal due12 Feb 2026BOD 22-01 deadline

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.

VendorPrettier (1 exploited CVE in KEV)
Producteslint-config-prettier
VulnerabilityPrettier eslint-config-prettier Embedded Malicious Code Vulnerability
WeaknessCWE-506
Published19 Jul 2025
Added to KEV22 Jan 2026
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for eslint-config-prettier in your asset inventory, including appliances and cloud images. Stack check lists every exploited Prettier CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 19 Jul 2025.
  4. Get told next time. Email alerts when CISA adds a CVE for Prettier.

References

Questions

Is CVE-2025-54313 being exploited?

Yes. CISA added CVE-2025-54313 to the Known Exploited Vulnerabilities catalog on 22 Jan 2026, which means there is reliable evidence of exploitation in the wild.

Is CVE-2025-54313 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2025-54313?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check Prettier's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected eslint-config-prettier and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in January 2026 · act-now radar.

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