4 matches found
Missing Authorization
Overview Affected versions of this package are vulnerable to Missing Authorization due to insufficient restriction of the groupconstrained channel flag in the channel patch API. An attacker can remove all participants from a group or direct message conversation by enabling the groupconstrained fl...
Missing Authorization
Overview Affected versions of this package are vulnerable to Missing Authorization due to insufficient restriction of the groupconstrained channel flag in the channel patch API. An attacker can remove all participants from a group or direct message conversation by enabling the groupconstrained fl...
EUVD-2026-43311
Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4, 10.11.x = 10.11.19 fail to restrict the groupconstrained channel flag to public and private channels that support group synchronization, which allows an ordinary group or direct message member to remove all participants from the conversation v...
CVE-2026-10085 Ordinary group/direct message member can enable group_constrained and remove all channel participants
Mattermost versions 11.7.x = 11.7.2, 11.6.x = 11.6.4, 10.11.x = 10.11.19 fail to restrict the groupconstrained channel flag to public and private channels that support group synchronization, which allows an ordinary group or direct message member to remove all participants from the conversation v...