CVE-2026-2456: fallo de gravedad media en Mattermost
Denial of Service via Unbounded Memory Allocation in Integration Actions
Publicada el
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.3epss 0.2%
probabilidad de explotación
0.2%top 95% de las CVE
explotación observada
noninguna fuente lo reporta
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 Mattermost fails to limit the size of responses from integration action endpoints, which allows an authenticated attacker to cause server memory exhaustion and denial of service via a malicious integration server that returns an arbitrarily large response when a user clicks an interactive message button.. Mattermost Advisory ID: MMSA-2026-00571
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Productos afectados
Mattermost · MattermostCVEs relacionadas — Mattermost
En el mismo producto, de las más peligrosas a las menos.
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Referencias
https://mattermost.com/security-updates