OpenClaw before 2026.3.28 accepts unbounded concurrent unauthenticated WebSocket upgrades without pre-authentication budget allocation. Unauthenticated network attackers can exhaust socket and worker capacity to disrupt WebSocket availability for legitimate clients.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41399.json",
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-770"
]
}{
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
],
"cpe": "cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2026.3.28"
}
]
}