Threats / Prettier / CVE-2025-54313
CVE-2025-54313
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Prettier eslint-config-prettier vulnerability
eslint-config-prettier contains malicious code that executes during package installation, deploying node-gyp.dll malware on Windows systems.
Verdict
Today item — known-exploited.
Supply chain compromise in a widely-used npm package. Installation triggers execution of embedded malware, affecting developers and CI/CD pipelines. CWE-506 indicates intentional malicious code obfuscation.
CISA KEV Yes · 2026-01-225EPSS 0.04146 (verify live)6CVSS 7.53CISA SSVC Exploitation: active · Automatable: no · Impact: partial4
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
6 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-01-22).
Probability (EPSS)
EPSS 0.04146 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 7.5 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N) · Affected: Prettier, eslint-config-prettier. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.
Weakness (CWE)
Mapped to CWE-506 CWE-506.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: partialCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 187 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
WeaknessCWE-506 · CWE-506
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
Compromise the eslint-config-prettier package repository to inject malicious install.js script.
Business
Development teams unknowingly install compromised dependency, introducing malware into build environments.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
Execute node-gyp.dll malware during npm install on Windows developer machines and CI/CD runners.
Business
Malware gains execution context within development infrastructure with potential access to source code and credentials.
3
Lateral reach — past segmentation narrative 3
Attacker
Establish persistence and exfiltrate sensitive data or inject backdoors into built artifacts.
Business
Compromised software builds propagate malware to end users; intellectual property and customer data at risk.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05