Affected versions of `jn_jj_server` 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:**
```http
GET /../../../../../../../../../../etc/passwd HTTP/1.1
host:foo
```

## Recommendation

No patch is available for this vulnerability.

It is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.

Affected Packages

npm jn_jj_server

Affected versions: 0 (last affected: 0.0.8)

Related CVEs

CVE-2017-16210

Key Information

GHSA ID

GHSA-79p8-4cwq-rhqh

Published

July 23, 2018 8:40 PM

Last Modified

September 5, 2023 11:24 PM

CVSS Score

7.5 /10

Primary Ecosystem

npm

Primary Package

jn_jj_server

GitHub Reviewed

✓ Yes

Dataset

Last updated: July 6, 2025 6:30 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.