> CVE-2026-54775 [MEDIUM]

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PUBLISHED
2026-07-08 23:16
MODIFIED
2026-07-08 23:16
CVSS_SCORE V3
6.5
EPSS (Prob. Exploit)
0.60%
Top 51.4%
DATA SOURCES:
NVD đź”— 2026-07-09 CWE MITRE đź”— 2026-11-01 FIRST EPSS đź”— 2026-11-01 GITHUB đź”— 2026-10-29 OSV đź”— 2026-11-02

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EXPLOITABILITY
2.8
IMPACT
3.6

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale du service possible

> WEAKNESSES

CWE-248 CWE-754 CWE-755

> CWE DETAILED DESCRIPTIONS

CWE-248: Uncaught Exception - An exception is thrown from a function, but it is not caught. | CWE-754: Improper Check for Unusual or Exceptional Conditions - The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. | CWE-755: Improper Handling of Exceptional Conditions - The product does not handle or incorrectly handles an exceptional condition.

> GITHUB SECURITY ADVISORY

GHSA-m744-jhq9-ppw6 MODERATE

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

AFFECTED PACKAGES:
NUGET / CoreWCF.Kafka
>= 1.9.0, < 1.9.1
Fixed in: 1.9.1
NUGET / CoreWCF.Kafka
< 1.8.1
Fixed in: 1.8.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

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

AFFECTED PACKAGES:
Unknown / Unknown
2 versions affected
ALIASES:
GHSA-m744-jhq9-ppw6

> HISTORIQUE DES MODIFICATIONS

Première apparition
08/07/2026 23:16
Source: NVD
📊 ENRICHISSEMENT 01/08/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-248: Uncaught Exception - An exception is thrown from a function, but it is not caught. | CWE-754: Improper Check for Unusual or Exceptional Conditions - The product does not check or incorrectly ...
Total des modifications: 1 Dernière mise à jour: 3 months ago

> REFERENCES

https://github.com/CoreWCF/CoreWCF/commit/1a229d0d14a07766302f7d14c866889f04a3a6...
https://github.com/CoreWCF/CoreWCF/commit/6d7431ebc0ebe6521ea6d0dbea8982bac3d2bc...
https://github.com/CoreWCF/CoreWCF/commit/8f95f3ac3c929409e830b5c5659683ef9f6ea6...
https://github.com/CoreWCF/CoreWCF/releases/tag/v1.8.1
https://github.com/CoreWCF/CoreWCF/releases/tag/v1.9.1
https://github.com/CoreWCF/CoreWCF/security/advisories/GHSA-m744-jhq9-ppw6
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