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CVE-2026-54775

CoreWCF: Kafka consume pump halts permanently on a Kafka tombstone (null-value record), causing persistent endpoint denial of service. PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
CoreWCF / CoreWCFaffected >= 1.9.0, < 1.9.1; affected < 1.8.1

CWE

CWE-248, CWE-754, CWE-755

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.