Security readout for executives and security teams
Plain-English summary
This is a compromised npm package used in JavaScript tooling. Specific eslint-config-prettier versions contained malicious code that ran during installation and launched Windows malware. Risk is highest for developer workstations, CI runners, and build systems that installed the affected versions.
Executive priority
Treat as high priority for engineering and build-security teams. The main business risk is compromise of trusted development or CI systems, which can expose credentials and downstream software integrity.
Technical view
CVE-2025-54313 affects eslint-config-prettier versions 8.10.1, 9.1.1, 10.1.6, and 10.1.7. The package included embedded malicious code: an install.js script that launches node-gyp.dll malware on Windows. It is classified as CWE-506 and scored CVSS 7.5 high.
Likely exposure
Organizations using npm with eslint-config-prettier are exposed if dependency locks, caches, developer machines, or CI environments installed versions 8.10.1, 9.1.1, 10.1.6, or 10.1.7. Evidence in the bundle indicates the malware path is Windows-focused.
Exploitation context
CISA KEV marks CVE-2025-54313 as known exploited. Public reporting in the bundle describes a phishing-led npm maintainer compromise that published malicious package versions. The bundle does not provide evidence of specific victim counts or post-infection attacker objectives.
Researcher notes
The evidence supports a malicious package compromise, not a typical code bug. Focus validation on dependency provenance, install-time execution, Windows endpoints, CI runners, caches, and credential exposure. Do not assume non-Windows impact beyond what sources document.
Mitigation direction
- Remove affected eslint-config-prettier versions from dependency locks and build images.
- Follow npm and project maintainer guidance for clean replacement versions.
- Rebuild Windows developer and CI environments that installed affected versions.
- Rotate credentials exposed to affected Windows build or developer systems.
- Purge npm caches and artifact mirrors containing affected packages.
Validation and detection
- Search package locks for eslint-config-prettier 8.10.1, 9.1.1, 10.1.6, or 10.1.7.
- Review CI logs for installs of affected versions during the exposure window.
- Check Windows systems for evidence of node-gyp.dll execution from package install paths.
- Confirm dependency mirrors no longer serve the affected package versions.
- Verify remediated builds install only unaffected eslint-config-prettier versions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-506: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-54313 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N2.24.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://socket.dev/blog/npm-phishing-campaign-leads-to-prettier-tooling-packages-compromiseCVE reference
- https://www.bleepingcomputer.com/news/security/popular-npm-linter-packages-hijacked-via-phishing-to-drop-malware/CVE reference
- https://github.com/prettier/eslint-config-prettier/issues/339CVE reference
- https://www.npmjs.com/package/eslint-config-prettier?activeTab=versionsCVE reference
- https://www.stepsecurity.io/blog/supply-chain-security-alert-eslint-config-prettier-package-shows-signs-of-compromiseCVE reference
- https://news.ycombinator.com/item?id=44609732CVE reference
- https://news.ycombinator.com/item?id=44608811CVE reference
- https://github.com/community-scripts/ProxmoxVE/discussions/6115CVE reference
- https://www.endorlabs.com/learn/cve-2025-54313-eslint-config-prettier-compromise----high-severity-but-windows-onlyCVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-54313CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Embedded Malicious Code
Embedded Malicious Code represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.