Arbitrary File Overwrite Affecting tar package, versions <2.2.2 >=3.0.0 <4.4.2



    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.34% (71st percentile)
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7.5 high
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Red Hat
8.8 high

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  • Snyk ID SNYK-JS-TAR-174125
  • published 7 Apr 2019
  • disclosed 4 Apr 2019
  • credit Max Justicz

How to fix?

Upgrade tar to version 2.2.2, 4.4.2 or higher.


tar is a full-featured Tar for Node.js.

Affected versions of this package are vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hard-link to a file that already exists in the system, and a file that matches the hard-link may overwrite system's files with the contents of the extracted file.