CVE-2026-59873

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 v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/isaacs/node-tar/commit/2812e9338665659b183aa7226518c307044957d3	Patch
https://github.com/isaacs/node-tar/releases/tag/v7.5.19	Release Notes
https://github.com/isaacs/node-tar/security/advisories/GHSA-23hp-3jrh-7fpw	Exploit Vendor Advisory
https://github.com/isaacs/node-tar/security/advisories/GHSA-23hp-3jrh-7fpw	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:isaacs:tar:*:*:*:*:*:node.js:*:*

History

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) node-tar es una biblioteca de manipulación de archivos tar para Node.js. Antes de la versión 7.5.19, node-tar no impone límites superiores estrictos sobre el total de datos descomprimidos, los recuentos de entradas o la relación de descompresión en rutas de extracción y análisis como src/extract.ts, permitiendo que una pequeña bomba gzip creada agote el espacio en disco y la CPU. Este problema está solucionado en la versión 7.5.19.

Information

Published : 2026-07-08 16:16

Updated : 2026-10-25 17:10

NVD link : CVE-2026-59873

Mitre link : CVE-2026-59873

CVE.ORG link : CVE-2026-59873

JSON object : View

Products Affected

isaacs

tar

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

{"id": "CVE-2026-59873", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-59873", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-08T18:00:24.478882Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.2, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "isaacs", "product": "node-tar", "versions": [{"status": "affected", "version": "< 7.5.19"}]}]}], "published": "2026-07-08T16:16:33.867", "references": [{"url": "https://github.com/isaacs/node-tar/commit/2812e9338665659b183aa7226518c307044957d3", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/isaacs/node-tar/releases/tag/v7.5.19", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/isaacs/node-tar/security/advisories/GHSA-23hp-3jrh-7fpw", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/isaacs/node-tar/security/advisories/GHSA-23hp-3jrh-7fpw", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "node-tar es una biblioteca de manipulaci\u00f3n de archivos tar para Node.js. Antes de la versi\u00f3n 7.5.19, node-tar no impone l\u00edmites superiores estrictos sobre el total de datos descomprimidos, los recuentos de entradas o la relaci\u00f3n de descompresi\u00f3n en rutas de extracci\u00f3n y an\u00e1lisis como src/extract.ts, permitiendo que una peque\u00f1a bomba gzip creada agote el espacio en disco y la CPU. Este problema est\u00e1 solucionado en la versi\u00f3n 7.5.19."}], "lastModified": "2026-10-25T17:10:00.197", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:isaacs:tar:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "DA3EF151-312C-4884-84B8-FFA6F32FBD27", "versionEndExcluding": "7.5.19"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}