CVE-2026-49091

Estado: AnalizadaAlta (8)—

Improper Output Neutralization for Logs (CWE-117) in Kibana can lead to log injection via Log Injection-Tampering-Forging (CAPEC-93). An attacker can supply specially crafted input that is written to log files without proper neutralization. When the log files are subsequently viewed in a terminal that interprets control sequences, the injected content may alter the displayed log data.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
Puntuación base: 8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.32%
Percentil entre todas las CVEs puntuadas: 23
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 Executionexecution75 %
Impacto principalT1565.001 Stored Data Manipulationimpact65 %
Impacto secundarioT1059.007 JavaScriptexecution45 %

UI:R en CVSS (interacción requerida) asigna T1203. La inyección de logs permite manipular datos mostrados en terminal mediante secuencias de control; impactos: falsificación de datos (T1565.001) y ejecución posible de comandos en el visor (T1059.007) con confianza moderada.

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 Web-Based Content Restrict File and Directory Permissions Remote Data Storage Execution Prevention Behavior Prevention on Endpoint Encrypt Sensitive Information

Tecnologías afectadas (1)

Elastic — Kibana

CWE

CWE-116

Referencias

https://discuss.elastic.co/t/kibana-7-17-15-8-11-1-security-update-esa-2026-53

JSON original (NVD)

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