LightLLM through 1.2.0 contains a remote code execution vulnerability in the Config Server's unauthenticated /visual_register WebSocket endpoint that passes the first client frame directly to pickle.loads(). Attackers can reach the Config Server port and send a malicious serialized payload with a reduce method to execute arbitrary code with Config Server process privileges.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-502"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90919.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "1.2.0"
},
{
"fixed": "1.2.0"
}
],
"source": [
"AFFECTED_FIELD",
"DESCRIPTION"
]
}