CVE-2026-59874: high-severity vulnerability in isaacs node-tar
node-tar: Negative tar entry size causes infinite loop in archive replace
Published
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.4%
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. This issue is fixed in version 7.5.18.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA: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-2026-24842HIGHnode-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%