CVE-2026-29786: fallo de gravedad alta en isaacs node-tar
node-tar: Hardlink Path Traversal via Drive-Relative Linkpath
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.2epss 0.5%
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L
Productos afectados
isaacs · node-tarCVEs relacionadas — isaacs node-tar
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-28863MEDIUMnode-tar vulnerable to denial of service while parsing a tar file due to lack of folders count validationEPSS 0.9%CVE-2026-59871MEDIUMnode-tar: Process crash via PAX numeric path type confusionEPSS 0.6%CVE-2026-24842HIGHnode-tar Vulnerable to Arbitrary File Creation/Overwrite via Hardlink Path TraversalEPSS 0.6%CVE-2026-59873CRITICALnode-tar: Decompression/parse DoS via unlimited inputEPSS 0.6%CVE-2026-73566HIGHnode-tar: Uncontrolled recursion in mapHas/filesFilter allows uncatchable stack-overflow DoS via crafted long-path tar with member selectionEPSS 0.5%CVE-2026-59874HIGHnode-tar: Negative tar entry size causes infinite loop in archive replaceEPSS 0.4%
Referencias
https://access.redhat.com/security/cve/CVE-2026-29786https://bugzilla.redhat.com/show_bug.cgi?id=2445476https://github.com/isaacs/node-tar/commit/7bc755dd85e623c0279e08eb3784909e6d7e4b9fhttps://github.com/isaacs/node-tar/security/advisories/GHSA-qffp-2rhf-9h96https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-29786.json