Ech0 before 4.5.1 contains an authorization bypass vulnerability where session tokens skip scope validation in RequireScopes middleware, allowing logged-in non-admin users to access admin endpoints. Attackers can read system logs, visitor statistics, user emails, and subscribe to live WebSocket logs by sending authenticated session tokens to unprotected endpoints.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-862"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79665.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "4.5.1"
},
{
"introduced": "Ech0"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}