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PUBLISHED

2026-07-08 23:16

MODIFIED

2026-07-08 23:16

CVSS_SCORE V3

7.4

EPSS (Prob. Exploit)

0.19%

Top 91.0%

DATA SOURCES:

NVD 🔗 2026-07-09 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 GITHUB 🔗 2026-10-29 OSV 🔗 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, CoreWCF WS-Security endorsing and supporting signature verification does not ensure the selected ds:Signature covers the expected Security header target, allowing an attacker with one captured signed SOAP envelope to replay arbitrary service operations as the victim principal. 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:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EXPLOITABILITY

2.2

IMPACT

5.2

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
            

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	High (H)	Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis) Privileges Required	None (N)	Aucune authentification requise
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	High (H)	Divulgation totale d'informations
I (Impact Intégrité) Integrity Impact	High (H)	Modification totale des données possible
A (Impact Disponibilité) Availability Impact	None (N)	Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité

High

Divulgation totale d'informations

Intégrité

High

Modification totale des données possible

Disponibilité

None

Aucune interruption de service

> WEAKNESSES

CWE-294 CWE-345 CWE-347

> CWE DETAILED DESCRIPTIONS

CWE-294: Authentication Bypass by Capture-replay - A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes). | CWE-345: Insufficient Verification of Data Authenticity - The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. | CWE-347: Improper Verification of Cryptographic Signature - The product does not verify, or incorrectly verifies, the cryptographic signature for data.

> GITHUB SECURITY ADVISORY

GHSA-gqv6-pwcg-87r8 HIGH

CoreWCF: XML Signature Wrapping in WS-Security endorsing/supporting signature verification allows replay of captured signed messages

AFFECTED PACKAGES:

NUGET / CoreWCF.Primitives

>= 1.9.0, < 1.9.1

Fixed in: 1.9.1

NUGET / CoreWCF.Primitives

< 1.8.1

Fixed in: 1.8.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

CoreWCF: XML Signature Wrapping in WS-Security endorsing/supporting signature verification allows replay of captured signed messages

AFFECTED PACKAGES:

Unknown / Unknown

2 versions affected

ALIASES:

GHSA-gqv6-pwcg-87r8

> 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:

Total des modifications: 1 Dernière mise à jour: 3 months ago

> REFERENCES

https://github.com/CoreWCF/CoreWCF/commit/0589692d4b9a41d21b34ac48281e95f6df7f4c...

https://github.com/CoreWCF/CoreWCF/commit/30aef805270976c42477e3f2a05f4e563d86e2...

https://github.com/CoreWCF/CoreWCF/commit/4618f24165ad018ad3ed2636bf8c3bc87d2a3b...

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-gqv6-pwcg-87r8