High severity · published Jul 8, 2026
CVE-2026-59873
node-tar: Decompression/parse DoS via unlimited input
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.19, node-tar does not enforce hard upper bounds on total decompressed data, entry counts, or decompression ratio in extraction and parsing paths such as src/extract.ts, allowing a small crafted gzip bomb to exhaust disk space and CPU. This issue is fixed in version 7.5.19.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
node-tar · isaacs
< 7.5.19 · source: vendor
TA
Tar · Isaacs
before 7.5.19 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59873
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59873
Patch
https://github.com/isaacs/node-tar/commit/2812e9338665659b183aa7226518c307044957d3
Release Notes
https://github.com/isaacs/node-tar/releases/tag/v7.5.19
Exploit
https://github.com/isaacs/node-tar/security/advisories/GHSA-23hp-3jrh-7fpw
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CVE-2026-59874
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7.1
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