CoreWCF is a port of the service side of Windows Communication Foundation (WCF) to .NET Core. Prior to 1.8.1 and 1.9.1, an unauthenticated remote attacker that can reach a NetTcpBinding, NetNamedPipeBinding, or UnixDomainSocketBinding endpoint can trigger premature EOF handling in the CoreWCF net.tcp, net.pipe, or net.uds framing handshake and pin one server thread-pool worker at full CPU per connection. This issue is fixed in versions 1.8.1 and 1.9.1.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-400",
"CWE-835"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54772.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "1.9.0"
},
{
"fixed": "1.9.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "0"
},
{
"fixed": "1.8.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "03ddbced349931a2da6c0efcdf745c0722eff77c"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "7ddd966d6e58564a32ab30c825dd693b45a34a55"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "c4212988cd6fd472783d0413426eeac61044097a"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v1.8.1",
"range": [
{
"fixed": "7c0920fe16adc497efae82881ac0f1e4d7ac98d0"
}
],
"source": "REFERENCES_TAG"
},
{
"original_tag": "v1.9.1",
"range": [
{
"fixed": "1f7a0811da5128db40fd7b868ae0aac0c581f91f"
}
],
"source": "REFERENCES_TAG"
}
]
}