CVE-2026-23745: fallo de gravedad alta en isaacs node-tar
node-tar Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization
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 0.4%
node-tar is a Tar for Node.js. The node-tar library (<= 7.5.2) fails to sanitize the linkpath of Link (hardlink) and SymbolicLink entries when preservePaths is false (the default secure behavior). This allows malicious archives to bypass the extraction root restriction, leading to Arbitrary File Overwrite via hardlinks and Symlink Poisoning via absolute symlink targets. This vulnerability is fixed in 7.5.3.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
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-2026-29786HIGHnode-tar: Hardlink Path Traversal via Drive-Relative LinkpathEPSS 0.5%
Referencias
https://access.redhat.com/errata/RHSA-2026:18480https://access.redhat.com/errata/RHSA-2026:18868https://access.redhat.com/errata/RHSA-2026:19712https://access.redhat.com/errata/RHSA-2026:2144https://access.redhat.com/errata/RHSA-2026:2900https://access.redhat.com/errata/RHSA-2026:2926https://access.redhat.com/errata/RHSA-2026:3782https://access.redhat.com/errata/RHSA-2026:41928https://access.redhat.com/errata/RHSA-2026:6192https://access.redhat.com/security/cve/CVE-2026-23745https://bugzilla.redhat.com/show_bug.cgi?id=2430538https://github.com/isaacs/node-tar/commit/340eb285b6d986e91969a1170d7fe9b0face405e