Vulnerability Description
better-npm-audit through 3.11.0, and the 4.0.0-rc.2 prerelease, builds its npm audit command by interpolating the user-supplied --registry option into a command string in src/handlers/handleInput.ts without validation or quoting, then passes that string to child_process.exec() in index.ts, which spawns a shell. A registry value containing shell metacharacters such as a semicolon, pipe, or command substitution executes arbitrary operating system commands with the privileges of the process running the audit.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/jeemok/better-npm-audit
- https://github.com/jeemok/better-npm-audit/blob/fd99a0f41ff4342b8a0a6fdbe5a17261
- https://github.com/jeemok/better-npm-audit/blob/fd99a0f41ff4342b8a0a6fdbe5a17261
- https://github.com/jeemok/better-npm-audit/issues/119
- https://github.com/jeemok/better-npm-audit/pull/120
- https://www.vulncheck.com/advisories/better-npm-audit-os-command-injection-via-r
FAQ
What is CVE-2026-57998?
CVE-2026-57998 is a vulnerability with a CVSS score of 7.8 (HIGH). better-npm-audit through 3.11.0, and the 4.0.0-rc.2 prerelease, builds its npm audit command by interpolating the user-supplied --registry option into a command string in src/handlers/handleInput.ts w...
How severe is CVE-2026-57998?
CVE-2026-57998 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-57998?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.