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PUBLISHED

2026-05-13 18:16

MODIFIED

2026-05-13 18:17

CVSS_SCORE V3

8.6

EPSS (Prob. Exploit)

35.54%

Top 1.5%

⚡ EPSS ÉLEVÉ (35.5%)

DATA SOURCES:

NVD 🔗 2026-05-13 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 GITHUB 🔗 2026-11-05 OSV 🔗 2026-11-02

> DESCRIPTION

Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the server to proxy requests to arbitrary internal or external destinations, which may expose internal services or cloud metadata endpoints. Vercel-hosted deployments are not affected. This vulnerability is fixed in 15.5.16 and 16.2.5.

> 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:N/UI:N/S:C/C:H/I:N/A:N

EXPLOITABILITY

3.9

IMPACT

4.0

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/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	Low (L)	Peu de conditions requises 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	Changed (C)	Impact s'étend au-delà du composant compromis
C (Impact Confidentialité) Confidentiality Impact	High (H)	Divulgation totale d'informations
I (Impact Intégrité) Integrity Impact	None (N)	Aucune modification de données possible
A (Impact Disponibilité) Availability Impact	None (N)	Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité

High

Divulgation totale d'informations

Intégrité

None

Aucune modification de données possible

Disponibilité

None

Aucune interruption de service

> WEAKNESSES

CWE-918

> CWE DETAILED DESCRIPTIONS

CWE-918: Server-Side Request Forgery - The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

> RED HAT SECURITY ADVISORIES

RHSA-2026:34608 IMPORTANT

Red Hat Security Advisory: Streams for Apache Kafka 2.9.4 release and security update

Streams for Apache Kafka 2.9.4 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scorin...

RHSA-2026:37272 IMPORTANT

Red Hat Security Advisory: RHTAS 1.4.2 - Red Hat Trusted Artifact Signer Release

The 1.4.2 release of Red Hat Trusted Artifact Signer OpenShift Operator. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifa...

RHSA-2026:40974 IMPORTANT

Red Hat Security Advisory: RHTAS 1.3.6 - Red Hat Trusted Artifact Signer Release

The 1.3.6 release of Red Hat Trusted Artifact Signer OpenShift Operator. For more details please visit the product documentation at https://access.redhat.com/documentation/en-us/red_hat_trusted_artifa...

RHSA-2026:54435 IMPORTANT

Red Hat Security Advisory: Streams for Apache Kafka 3.2.1 release and security update

Streams for Apache Kafka 3.2.1 is now available from the Red Hat Customer Portal. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scorin...

> GITHUB SECURITY ADVISORY

GHSA-c4j6-fc7j-m34r HIGH

Next.js vulnerable to server-side request forgery in applications using WebSocket upgrades

AFFECTED PACKAGES:

NPM / next

>= 16.0.0, < 16.2.5

Fixed in: 16.2.5

NPM / next

>= 13.4.13, < 15.5.16

Fixed in: 15.5.16

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Next.js: Server-side request forgery in applications using WebSocket upgrades

AFFECTED PACKAGES:

Unknown / Unknown

1474 versions affected

ALIASES:

GHSA-c4j6-fc7j-m34r

> HISTORIQUE DES MODIFICATIONS

Première apparition

13/05/2026 18:16

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:59

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-918: Server-Side Request Forgery (SSRF) - The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure th...

Nouvelle valeur:

📊 ENRICHISSEMENT 01/06/2026 06:01

CWE