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CVE Vulnerability Details :
CVE-2026-54775
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-08 Jul, 2026 | 22:13
Updated At-09 Jul, 2026 | 14:20
Rejected At-
▼CVE Numbering Authority (CNA)
CoreWCF: Kafka consume pump halts permanently on a Kafka tombstone (null-value record), causing persistent endpoint denial of service.

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 Products
Vendor
CoreWCF
Product
CoreWCF
Versions
Affected
  • >= 1.9.0, < 1.9.1
  • < 1.8.1
Problem Types
TypeCWE IDDescription
CWECWE-248CWE-248: Uncaught Exception
CWECWE-754CWE-754: Improper Check for Unusual or Exceptional Conditions
CWECWE-755CWE-755: Improper Handling of Exceptional Conditions
Type: CWE
CWE ID: CWE-248
Description: CWE-248: Uncaught Exception
Type: CWE
CWE ID: CWE-754
Description: CWE-754: Improper Check for Unusual or Exceptional Conditions
Type: CWE
CWE ID: CWE-755
Description: CWE-755: Improper Handling of Exceptional Conditions
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-m744-jhq9-ppw6
x_refsource_CONFIRM
https://github.com/CoreWCF/CoreWCF/commit/1a229d0d14a07766302f7d14c866889f04a3a624
x_refsource_MISC
https://github.com/CoreWCF/CoreWCF/commit/6d7431ebc0ebe6521ea6d0dbea8982bac3d2bc98
x_refsource_MISC
https://github.com/CoreWCF/CoreWCF/commit/8f95f3ac3c929409e830b5c5659683ef9f6ea6b0
x_refsource_MISC
https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1
x_refsource_MISC
https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1
x_refsource_MISC
Hyperlink: https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-m744-jhq9-ppw6
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/CoreWCF/CoreWCF/commit/1a229d0d14a07766302f7d14c866889f04a3a624
Resource:
x_refsource_MISC
Hyperlink: https://github.com/CoreWCF/CoreWCF/commit/6d7431ebc0ebe6521ea6d0dbea8982bac3d2bc98
Resource:
x_refsource_MISC
Hyperlink: https://github.com/CoreWCF/CoreWCF/commit/8f95f3ac3c929409e830b5c5659683ef9f6ea6b0
Resource:
x_refsource_MISC
Hyperlink: https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1
Resource:
x_refsource_MISC
Hyperlink: https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found