Arbitrary File Overwrite in fstream
Versions of fstream prior to 1.0.12 are vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system and a file that matches the hardlink will overwrite the system's file with the contents of the extracted file. The fstream.DirWriter() function is vulnerable.
Recommendation
Upgrade to version 1.0.12 or later.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | fstream | < 1.0.12 | 1.0.12 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-13173
- https://github.com/npm/fstream/commit/6a77d2fa6e1462693cf8e46f930da96ec1b0bb22
- https://usn.ubuntu.com/4123-1
- https://www.npmjs.com/advisories/886
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00052.html
- CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N- Weakness (CWE)
CWE-59- Platform
- npm
- Package
fstream- Disclosed
- 30.05.2019
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-xf7w-r453-m56c - CC BY 4.0
Vulnerability history: fstream
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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