CVE-2026-24842: high-severity vulnerability in isaacs node-tar
node-tar Vulnerable to Arbitrary File Creation/Overwrite via Hardlink Path Traversal
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.2epss 0.6%
node-tar,a Tar for Node.js, contains a vulnerability in versions prior to 7.5.7 where the security check for hardlink entries uses different path resolution semantics than the actual hardlink creation logic. This mismatch allows an attacker to craft a malicious TAR archive that bypasses path traversal protections and creates hardlinks to arbitrary files outside the extraction directory. Version 7.5.7 contains a fix for the issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Affected products
isaacs · node-tarRelated CVEs — isaacs node-tar
In the same product, most dangerous first.
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-2026-59873CRITICALnode-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%CVE-2026-59874HIGHnode-tar: Negative tar entry size causes infinite loop in archive replaceEPSS 0.4%
References
https://access.redhat.com/errata/RHSA-2026:18480https://access.redhat.com/errata/RHSA-2026:18868https://access.redhat.com/errata/RHSA-2026:2900https://access.redhat.com/errata/RHSA-2026:33371https://access.redhat.com/errata/RHSA-2026:5447https://access.redhat.com/errata/RHSA-2026:6192https://access.redhat.com/security/cve/CVE-2026-24842https://bugzilla.redhat.com/show_bug.cgi?id=2433645https://github.com/isaacs/node-tar/commit/f4a7aa9bc3d717c987fdf1480ff7a64e87ffdb46https://github.com/isaacs/node-tar/security/advisories/GHSA-34x7-hfp2-rc4vhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-24842.json