CVE-2026-100255

Estado: AnalizadaCrítica (9.8)—

In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 administrator account takeover was possible via password reset

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.35%
Percentil entre todas las CVEs puntuadas: 26
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 access75 %
Impacto principalT1078.001 Default Accountsstealth · persistence · privilege escalation · initial access85 %
Impacto secundarioT1098.001 Additional Cloud Credentialspersistence · privilege escalation80 %

AV:N sin autenticación previa permite exploit remoto de aplicación expuesta (T1190). Admin account takeover (CWE-1289, password reset) resulta en acceso con credenciales válidas (T1078.001) y control de cuenta comprometida (T1098.001).

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

Privileged Account Management Network Segmentation Multi-factor Authentication Vulnerability Scanning User Account Management Password Policies

Tecnologías afectadas (1)

Jetbrains — Teamcity

CWE

CWE-1289

Referencias

https://www.jetbrains.com/privacy-security/issues-fixed/

JSON original (NVD)

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