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High severity · published Jun 30, 2026
CVE-2026-56350
n8n - SSO Enforcement Bypass via API
7.7
CVSS
0.4%
EPSS
No
On KEV
Description
n8n before 2.8.0 contains an authentication bypass vulnerability allowing authenticated SSO users to disable SSO enforcement through the API. Attackers can create local password credentials to authenticate directly, bypassing organizational SSO policies and identity-provider-enforced multi-factor authentication.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n
before 2.8.0 · source: vendor, NVD
Affected product
N8
n8n
n8n
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56350
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56350
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-vjf3-2gpj-233v
Third Party Advisory
https://www.vulncheck.com/advisories/n8n-sso-enforcement-bypass-via-api
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