A weakness has been identified in FedML-AI FedML up to 0.8.9. Affected is the function sendMessage of the file grpc_server.py of the component gRPC server. Executing a manipulation can lead to deserialization. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5536.json",
"cwe_ids": [
"CWE-20",
"CWE-502"
],
"cna_assigner": "VulDB",
"unresolved_ranges": [
{
"source": "AFFECTED_FIELD",
"extracted_events": [
{
"introduced": "0.8.0"
},
{
"last_affected": "0.8.0"
},
{
"introduced": "0.8.1"
},
{
"last_affected": "0.8.1"
},
{
"introduced": "0.8.2"
},
{
"last_affected": "0.8.2"
},
{
"introduced": "0.8.3"
},
{
"last_affected": "0.8.3"
},
{
"introduced": "0.8.4"
},
{
"last_affected": "0.8.4"
},
{
"introduced": "0.8.5"
},
{
"last_affected": "0.8.5"
},
{
"introduced": "0.8.6"
},
{
"last_affected": "0.8.6"
},
{
"introduced": "0.8.7"
},
{
"last_affected": "0.8.7"
},
{
"introduced": "0.8.8"
},
{
"last_affected": "0.8.8"
},
{
"introduced": "0.8.9"
},
{
"last_affected": "0.8.9"
}
]
}
]
}{
"cpe": "cpe:2.3:a:tensoropera:fedml:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "0.8.9"
}
],
"source": "CPE_RANGE"
}