CVE-2026-56350
CVE-2026-56350 is a medium-severity vulnerability in N8n with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- CVSS v4: 6.0
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-285
- Affected product: N8n
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-56350?
- 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.
- How severe is CVE-2026-56350?
- CVE-2026-56350 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2026-56350 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-56350?
- CVE-2026-56350 affects N8n. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-56350?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2026-56350 published?
- CVE-2026-56350 was published on 2026-06-30 and last updated on 2026-07-02.
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-vjf3-2gpj-233v
- https://www.vulncheck.com/advisories/n8n-sso-enforcement-bypass-via-api
Affected products (1)
- cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
More vulnerabilities in N8n
- CVE-2026-54309 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, when @n8n/mcp-browser is run in HTTP…
- CVE-2026-21858 — Critical (CVSS 10.0): n8n is an open source workflow automation platform. Versions starting with 1.65.0 and below 1.121.0 enable an attacker…
- CVE-2026-54305 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, three EE endpoints used by…
- CVE-2026-44791 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with…
- CVE-2026-44789 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with…
- CVE-2026-54310 — Critical (CVSS 9.9): n8n is an open source workflow automation platform. Prior to 2.25.7 and 2.26.2, an authenticated user with permission…
Other CWE-285 (Improper Authorization) vulnerabilities
- CVE-2025-65041 — Critical (CVSS 10.0): Improper authorization in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
- CVE-2023-33189 — Critical (CVSS 10.0): Pomerium is an identity and context-aware access proxy. With specially crafted requests, incorrect authorization…
- CVE-2022-2595 — Critical (CVSS 10.0): Improper Authorization in GitHub repository kromitgmbh/titra prior to 0.79.1.
- CVE-2021-28799 — Critical (CVSS 10.0): An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If…
- CVE-2026-34048 — Critical (CVSS 9.9): Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to…
- CVE-2026-5412 — Critical (CVSS 9.9): In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated…
Browse all CWE-285 (Improper Authorization) vulnerabilities →