VULNERABILITY INTELLIGENCE

CVE-2026-54775

CVSS score6.5 MEDIUM
EPSS probability0.60%
CISA KEVNot currently listed
Published2026-07-08
Last modified2026-07-09
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-248

Primary references