Affected versions of list-n-stream resolve relative file paths, resulting in a directory traversal vulnerability. A malicious actor can use this vulnerability to access files outside of the intended directory root, which may result in the disclosure of private files on the vulnerable system.

Example request:

GET /../../../../../../../../../../etc/passwd HTTP/1.1
host:foo

Recommendation

Update to version 0.0.11 or later.

References

• https://nvd.nist.gov/vuln/detail/CVE-2017-16084
• https://github.com/JacksonGL/NPM-Vuln-PoC/tree/master/directory-traversal/list-n-stream
• GHSA-23vf-5g53-hm9q
• https://www.npmjs.com/advisories/344