漏洞信息
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Vulnerability Title
Insufficient authorization in shared channel membership sync grants team-level access instead of channel-level access
Vulnerability Description
Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to restrict team-level access when processing membership sync from a remote cluster, which allows a malicious remote cluster to grant a user access to an entire private team instead of only the shared channel via sending crafted membership sync messages that trigger team membership assignment. Mattermost Advisory ID: MMSA-2026-00574
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Vulnerability Type
授权机制不正确
Vulnerability Title
Mattermost 安全漏洞
Vulnerability Description
Mattermost是美国Mattermost公司的一个开源协作平台。 Mattermost 11.2.2及之前的11.2.x版本、10.11.10及之前的10.11.x版本、11.4.0及之前的11.4.x版本和11.3.1及之前的11.3.x版本存在安全漏洞,该漏洞源于处理来自远程集群的成员同步时未能限制团队级访问,可能导致恶意远程集群通过发送特制的成员同步消息授予用户访问整个私有团队的权限。
CVSS Information
N/A
Vulnerability Type
N/A