CVE-2026-23745: falha de alta gravidade em isaacs node-tar
node-tar Vulnerable to Arbitrary File Overwrite and Symlink Poisoning via Insufficient Path Sanitization
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21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
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
Produtos afetados
isaacs · node-tarCVEs relacionadas — isaacs node-tar
No mesmo produto, das mais perigosas para as 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%
Referências
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