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Vulnerabilidades / CVE-2025-12421

crítica

CVE-2025-12421

Mattermost fails to to verify the token used during code exchange

Publicada Modificada CWE 303
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.

Severidad por fuente

GHSA10.0CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

La etiqueta propia de Trivy es CRITICAL. Crítica según GHSA.

Descripción

Mattermost versions 11.0.x <= 11.0.2, 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to to verify that the token used during the code exchange originates from the same authentication flow, which allows an authenticated user to perform account takeover via a specially crafted email address used when switching authentication methods and sending a request to the /users/login/sso/code-exchange endpoint. The vulnerability requires ExperimentalEnableAuthenticationTransfer to be enabled (default: enabled) and RequireEmailVerification to be disabled (default: disabled).

Paquetes afectados y versiones corregidas

FuentePaqueteCorregido en
go::GitHub Security Advisory Gogithub.com/mattermost/mattermost-server, github.com/mattermost/mattermost/server/v811.0.3, 10.12.2, 10.11.5, 10.5.13 y 1 más
Mostrar las 2 entradas de 1 fuente
FuentePaqueteCorregido en
go::GitHub Security Advisory Gogithub.com/mattermost/mattermost-server11.0.3, 10.12.2, 10.11.5, 10.5.13
go::GitHub Security Advisory Gogithub.com/mattermost/mattermost/server/v88.0.0-20251022210333-acda1fb5dd46

Referencias

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.