CVE-2026-29146

Estado: ModificadaAlta (7.5)—
Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.0.0-M1 through 10.1.52, from 9.0.13 through 9..115, from 8.5.38 through 8.5.100, from 7.0.100 through 7.0.109.
Users are recommended to upgrade to version 11.0.19, 10.1.53 and 9.0.116, which fixes the issue.
CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Puntuación base: 7.5
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 2.89%
Percentil entre todas las CVEs puntuadas: 86
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.
ExplotaciónT1190 Exploit Public-Facing Applicationinitial access85 %
Impacto principalT1005 Data from Local Systemcollection80 %
Vector AV:N/PR:N/UI:N indica explotación remota sin privilegios (T1190). Padding Oracle permite descifrar datos mediante análisis de respuestas (CWE-209, C:H), extrayendo información sensible (T1005).
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

Vulnerability Scanning Privileged Account Management Network Segmentation Limit Access to Resource Over Network Filter Network Traffic Application Isolation and Sandboxing
Tecnologías afectadas (1)

Apache — Tomcat
CWE

CWE-209, CWE-642
CWE-1240
Referencias

JSON original (NVD)

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