CVE-2019-13173: n/a vulnerability

CVE-2019-13173: fstream before 1.0.12 is vulnerable to Arbitrary File Overwrite.

fstream before 1.0.12 is 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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 4, 2024, 23:41 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2019-13173 is a file-overwrite flaw in the npm fstream package before 1.0.12. If vulnerable software extracts a specially crafted tarball, an existing system file can be overwritten. Business risk depends on whether fstream is present and whether untrusted archives are processed. Exposure is most likely in Node.js applications, build tooling, or package workflows that include fstream before 1.0.12 and extract tar archives from untrusted or attacker-influenced sources. Treat as a targeted dependency hygiene issue. Prioritize environments that ingest third-party archives, CI artifacts, packages, or user-supplied tarballs, because successful abuse can overwrite files on affected systems. Mitigation focus: Upgrade fstream to 1.0.12 or later where present.; Apply relevant Ubuntu or openSUSE security updates if using distro packages.; Avoid extracting untrusted tarballs through vulnerable fstream-based tooling..

Prepared: Jun 6, 2026, 20:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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File access behavior lookup

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 2, 2019, 19:26 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://www.npmjs.com/advisories/886CVE reference · x_refsource_MISC
https://github.com/npm/fstream/commit/6a77d2fa6e1462693cf8e46f930da96ec1b0bb22CVE reference · x_refsource_MISC
USN-4123-1CVE reference · vendor-advisory, x_refsource_UBUNTU

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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