> CVE-2026-41270 [HIGH]

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PUBLISHED
2026-04-23 20:16
MODIFIED
2026-04-23 20:16
CVSS_SCORE V3
7.1
EPSS (Prob. Exploit)
0.23%
Top 85.6%
DATA SOURCES:
NVD 🔗 2026-04-23 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-10-29 OSV 🔗 2026-11-02

> DESCRIPTION

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Server-Side Request Forgery (SSRF) protection bypass vulnerability exists in the Custom Function feature. While the application implements SSRF protection via HTTP_DENY_LIST for axios and node-fetch libraries, the built-in Node.js http, https, and net modules are allowed in the NodeVM sandbox without equivalent protection. This allows authenticated users to bypass SSRF controls and access internal network resources (e.g., cloud provider metadata services) This vulnerability is fixed in 3.1.0.

> 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:L/UI:N/S:U/C:H/I:H/A:L
EXPLOITABILITY
1.6
IMPACT
5.5

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L
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
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
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
Low (L)
Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
Low
Interruption partielle du service possible

> WEAKNESSES

CWE-284 CWE-918

> CWE DETAILED DESCRIPTIONS

CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | 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.

> GITHUB SECURITY ADVISORY

GHSA-xhmj-rg95-44hv HIGH

Flowise: SSRF Protection Bypass via Unprotected Built-in HTTP Modules in Custom Function Sandbox

AFFECTED PACKAGES:
NPM / flowise-components
<= 3.0.13
Fixed in: 3.1.0
NPM / flowise
<= 3.0.13
Fixed in: 3.1.0

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Flowise: SSRF Protection Bypass via Unprotected Built-in HTTP Modules in Custom Function Sandbox

AFFECTED PACKAGES:
Unknown / Unknown
273 versions affected
ALIASES:
GHSA-xhmj-rg95-44hv

> HISTORIQUE DES MODIFICATIONS

Première apparition
23/04/2026 20:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-918: Server-Side Request Forgery (SSRF) - The web serve...
Nouvelle valeur:
CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-918: Server-Side Request Forgery - The web server recei...
📊 ENRICHISSEMENT 01/05/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-284: Improper Access Control - The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. | CWE-918: Server-Side Request Forgery (SSRF) - The web serve...
Total des modifications: 2 Dernière mise à jour: 1 week ago

> REFERENCES

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-xhmj-rg95-44hv
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