CVE-2026-73566: high-severity vulnerability in isaacs node-tar
node-tar: Uncontrolled recursion in mapHas/filesFilter allows uncatchable stack-overflow DoS via crafted long-path tar with member selection
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.5%
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.21, node-tar's filesFilter in src/list.ts uses the recursive mapHas helper to walk an archive entry path upward with path.dirname() and no segment cap when tar.t(...) or tar.x(...) receives a non-empty member-selection list. A crafted GNU L or PAX x long-path header with thousands of slash-separated segments reaches this.filter(entry.path, entry) in Parser[CONSUMEHEADER] in src/parse.ts before Unpack[CHECKPATH] applies maxDepth, causing an uncatchable RangeError stack overflow that terminates asynchronous and streaming Node.js consumers. This issue is fixed in version 7.5.21.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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-2026-24842HIGHnode-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-2026-29786HIGHnode-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%