CVE-2025-55074

Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11 fail to enforce access permissions on the Agents plugin which allows other users to determine when users had read channels via channel member objects

CVSS v3 3.0 LOW

3.0^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.3 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://mattermost.com/security-updates	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:mattermost:mattermost_server::::::::
	cpe:2.3:a:mattermost:mattermost_server::::::::

History

19 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) Las versiones de Mattermost 10.11.x menor o igual que 10.11.3, 10.5.x menor o igual que 10.5.11 fallan en aplicar los permisos de acceso en el plugin de Agentes, lo que permite a otros usuarios determinar cuándo los usuarios habían leído canales a través de objetos de miembros del canal.

Information

Published : 2025-11-18 16:15

Updated : 2026-10-19 13:10

NVD link : CVE-2025-55074

Mitre link : CVE-2025-55074

CVE.ORG link : CVE-2025-55074

JSON object : View

Products Affected

mattermost

mattermost_server

CWE

NVD-CWE-noinfo

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