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CVE-2026-29786

node-tar: Hardlink Path Traversal via Drive-Relative Linkpath

CVSS 4.0 8.2 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-29786

Published

node-tar is a full-featured Tar for Node.js. Prior to version 7.5.10, tar can be tricked into creating a hardlink that points outside the extraction directory by using a drive-relative link target such as C:../target.txt, which enables file overwrite outside cwd during normal tar.x() extraction. This issue has been patched in version 7.5.10.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-29786

Published

node-tar

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "isaacs",
                    "product": "node-tar",
                    "versions": [
                        {
                            "version": "< 7.5.10",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON