Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 7.10.14, 8.0.8, 8.1.7, 8.2.7, 8.3.7, 8.4.5, 8.5.2, and 8.6.1, the stream-notify-user stream in the WebSocket protocol allows an authenticated user to write arbitrary notification bodies because the sender is not checked, and the client-side UI can create an ephemeral fake message in another user's currently open chat. This issue is fixed in versions 7.10.14, 8.0.8, 8.1.7, 8.2.7, 8.3.7, 8.4.5, 8.5.2, and 8.6.1.
{
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72918.json",
"cwe_ids": [
"CWE-862"
]
}{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "7.10.14"
},
{
"introduced": "8.0.0"
},
{
"fixed": "8.0.8"
},
{
"introduced": "8.1.0"
},
{
"fixed": "8.1.7"
},
{
"introduced": "8.2.0"
},
{
"fixed": "8.2.7"
},
{
"introduced": "8.3.0"
},
{
"fixed": "8.3.7"
},
{
"introduced": "8.4.0"
},
{
"fixed": "8.4.5"
},
{
"introduced": "8.5.0"
},
{
"fixed": "8.5.2"
},
{
"introduced": "8.6.0"
},
{
"fixed": "8.6.1"
}
]
}