PT-2026-54039 · N8N · N8N

Stanislavfortaisle · Published 2026-06-30 · Updated 2026-07-01 · CVE-2026-56350

Positive Technologies (AI Summary)

CVSS v3.1

6.3

Medium

Base vector

AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions n8n versions prior to 2.8.0

Description An authentication bypass exists that allows authenticated Single Sign-On (SSO) users to disable SSO enforcement via the API. This allows attackers to create local password credentials to authenticate directly, which bypasses organizational SSO policies and multi-factor authentication enforced by the identity provider.

Recommendations Update to version 2.8.0 or later.

Fix

Improper Authorization

Weakness Enumeration

CWE-285

Related Identifiers

CVE-2026-56350

Affected Products

N8N

References · 4

• https://github.com/n8n-io/n8n/security/advisories/GHSA-vjf3-2gpj-233v · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-56350 · Security Note
• https://twitter.com/VulmonFeeds/status/2072178827007078463 · Twitter Post
• https://vulncheck.com/advisories/n8n-sso-enforcement-bypass-via-api · Note