CVE-2026-3590

MEDIUM

6.5

Descripcion

Mattermost versions 10.11.x <= 10.11.12, 11.5.x <= 11.5.0, 11.4.x <= 11.4.2, 11.3.x <= 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent requests.. Mattermost Advisory ID: MMSA-2026-00624

Detalles CVE

Puntuacion CVSS v3.16.5

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado4/15/2026

Ultima modificacion4/17/2026

Fuentenvd

Avistamientos honeypot0

Debilidades (CWE)

CWE-367

Referencias

https://mattermost.com/security-updates(responsibledisclosure@mattermost.com)

Correlaciones IOC

Sin correlaciones registradas

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