CVE-2018-7408
HighCVSS 7.8Summary
An issue was discovered in an npm 5.7.0 2018-02-21 pre-release (marked as "next: 5.7.0" and therefore automatically installed by an "npm upgrade -g npm" command, and also announced in the vendor's blog without mention of pre-release status). It might allow local users to bypass intended filesystem access restrictions because ownerships of /etc and /usr directories are being changed unexpectedly, related to a "correctMkdir" issue.
Risk Assessment
Might allow local users to bypass filesystem access restrictions through unexpected ownership changes of /etc and /usr directories.
Recommendation
Update npm to a stable patched version and avoid installing pre-release versions.
Other vulnerabilities in npm
Original NVD description (English source)
An issue was discovered in an npm 5.7.0 2018-02-21 pre-release (marked as "next: 5.7.0" and therefore automatically installed by an "npm upgrade -g npm" command, and also announced in the vendor's blog without mention of pre-release status). It might allow local users to bypass intended filesystem access restrictions because ownerships of /etc and /usr directories are being changed unexpectedly, related to a "correctMkdir" issue.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS