{
"id": "GHSA-m744-jhq9-ppw6",
"aliases": [
"CVE-2026-54775"
],
"details": "### Impact\nA CoreWCF service is running and listening on a Kafka topic receiving a null-value record will stop processing new records from that topic.\n\n#### Preconditions\nThe attacker has produce/write permission on a topic that CoreWCF is consuming from. If the broker permits anonymous publishes, no authentication is required. \n\n### Patches\nFixed in CoreWCF v1.8.1 and v1.9.1\n\n### Workarounds\nOnly allow authenticated writes to a topic",
"summary": "CoreWCF: Kafka consume pump halts permanently on a Kafka tombstone (null-value record), causing persistent endpoint denial of service.",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.8.1"
}
]
}
],
"package": {
"name": "CoreWCF.Kafka",
"ecosystem": "NuGet"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "1.9.0"
},
{
"fixed": "1.9.1"
}
]
}
],
"package": {
"name": "CoreWCF.Kafka",
"ecosystem": "NuGet"
}
}
],
"modified": "2026-06-19T20:46:49Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
}
],
"published": "2026-06-19T20:46:49Z",
"references": [
{
"url": "https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-m744-jhq9-ppw6",
"type": "WEB"
},
{
"url": "https://github.com/CoreWCF/CoreWCF",
"type": "PACKAGE"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-248",
"CWE-754",
"CWE-755"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2026-06-19T20:46:49Z"
}
}