CVE-2026-56359

5.4 Moyenne

Publiée le 08/07/2026 à 16:17 · Modifiée le 09/07/2026 à 17:16 · Analysée par le NVD · Source : disclosure@vulncheck.com

Description

n8n before 2.8.0 contains a cross-site scripting vulnerability in the credential management flow where authenticated users can inject malicious JavaScript URLs into OAuth2 credential Authorization URL fields. Attackers can craft malicious credentials and trick victims into clicking the OAuth authorization button, executing arbitrary scripts in their browser session with the victim's privileges.

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Produits concernés

n8n
N8n n8n

Scores CVSS

Version	Score	Source	Vecteur
4.0	4.8 Moyenne	disclosure@vulncheck.com	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X`
3.1	5.4 Moyenne	disclosure@vulncheck.com	`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`

Faiblesses (CWE)

CWE-79

Références

https://github.com/n8n-io/n8n/security/advisories/GHSA-364x-8g5j-x2pr MitigationVendor Advisory
https://www.vulncheck.com/advisories/n8n-cross-site-scripting-in-credential-management-oauth2-authorization-url Third Party Advisory

CVE-2026-56359

Description

Produits concernés

Scores CVSS

Faiblesses (CWE)

Références

Ailleurs