{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-54775", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-15T23:23:57.713Z", "datePublished": "2026-07-08T22:13:37.611Z", "dateUpdated": "2026-07-08T22:13:37.611Z"}, "containers": {"cna": {"title": "CoreWCF: Kafka consume pump halts permanently on a Kafka tombstone (null-value record), causing persistent endpoint denial of service.", "problemTypes": [{"descriptions": [{"cweId": "CWE-248", "lang": "en", "description": "CWE-248: Uncaught Exception", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-754", "lang": "en", "description": "CWE-754: Improper Check for Unusual or Exceptional Conditions", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-755", "lang": "en", "description": "CWE-755: Improper Handling of Exceptional Conditions", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-m744-jhq9-ppw6", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-m744-jhq9-ppw6"}, {"name": "https://github.com/CoreWCF/CoreWCF/commit/1a229d0d14a07766302f7d14c866889f04a3a624", "tags": ["x_refsource_MISC"], "url": "https://github.com/CoreWCF/CoreWCF/commit/1a229d0d14a07766302f7d14c866889f04a3a624"}, {"name": "https://github.com/CoreWCF/CoreWCF/commit/6d7431ebc0ebe6521ea6d0dbea8982bac3d2bc98", "tags": ["x_refsource_MISC"], "url": "https://github.com/CoreWCF/CoreWCF/commit/6d7431ebc0ebe6521ea6d0dbea8982bac3d2bc98"}, {"name": "https://github.com/CoreWCF/CoreWCF/commit/8f95f3ac3c929409e830b5c5659683ef9f6ea6b0", "tags": ["x_refsource_MISC"], "url": "https://github.com/CoreWCF/CoreWCF/commit/8f95f3ac3c929409e830b5c5659683ef9f6ea6b0"}, {"name": "https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1"}, {"name": "https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1"}], "affected": [{"vendor": "CoreWCF", "product": "CoreWCF", "versions": [{"version": ">= 1.9.0, < 1.9.1", "status": "affected"}, {"version": "< 1.8.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-07-08T22:13:37.611Z"}, "descriptions": [{"lang": "en", "value": "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, a CoreWCF service listening on a Kafka topic stops processing new records from that topic when KafkaTransportPump receives a null-value tombstone record, causing a persistent endpoint denial of service for attackers with produce permission. This issue is fixed in versions 1.8.1 and 1.9.1."}], "source": {"advisory": "GHSA-m744-jhq9-ppw6", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.9.0,1.9.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.8.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "CoreWCF", "source": "cna", "vendor": "CoreWCF"}, "product": "corewcf", "vendor": "corewcf"}], "created": "2026-07-08T23:30:10.214309+00:00", "updated": "2026-07-09T04:00:11.594256+00:00", "vendors": ["corewcf", "corewcf$PRODUCT$corewcf"]}