Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/<team-id>/channels/deleted endpoint.
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "8.1.7"
},
{
"introduced": "9.0.0"
},
{
"fixed": "9.0.5"
},
{
"introduced": "9.1.0"
},
{
"fixed": "9.1.4"
},
{
"introduced": "9.2.0"
},
{
"fixed": "9.2.3"
}
]
}