CVE-2026-24842

Estado: ModificadaAlta (8.2)—
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

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Puntuación base: 8.2
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.62%
Percentil entre todas las CVEs puntuadas: 48
Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
ExplotaciónT1203 Exploitation for Client Executionexecution85 %
Impacto principalT1005 Data from Local Systemcollection80 %
Impacto secundarioT1565 Data Manipulationimpact75 %
UI:R requiere interacción del usuario (abrir archivo TAR preparado). La vulnerabilidad de traversal permite leer archivos arbitrarios (T1005) y manipular datos mediante hardlinks (T1565).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Restrict File and Directory Permissions Remote Data Storage Network Segmentation Encrypt Sensitive Information Application Isolation and Sandboxing Exploit Protection
Tecnologías afectadas (1)

Isaacs — TAR
CWE

CWE-22, CWE-59
CWE-59
Referencias

JSON original (NVD)

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