Ech0 before 4.4.3 lacks authorization checks on system log endpoints allowing any authenticated non-admin user to read and stream all server logs. Attackers can access historical logs and real-time log streams via GET /api/system/logs, GET /api/system/logs/stream, and WS /ws/system/logs to gather reconnaissance data including internal file paths, error stack traces, and application state.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79669.json",
"cwe_ids": [
"CWE-862"
],
"cna_assigner": "VulnCheck"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "4.4.3"
},
{
"introduced": "Ech0"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}