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TI-2026-26101 Aliases CVE-2026-33722GHSA-fxcw-h3qj-8m8p

n8n Has External Secrets Authorization Bypass in Credential Saving

Priority LOW 32CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-863.

Summary

n8n is an open source workflow automation platform. Prior to versions 2.6.4 and 1.123.23, an authenticated user without permission to list external secrets could reference a secret by the external name in a credential and retrieve its plaintext value when saving the credential. This bypassed the `externalSecret:list` permission check and allowed access to secrets stored in connected vaults without admin or owner privileges. This issue requires the instance to have an external secrets vault configured. The attacker must know or be able to guess the name of a target secret. The issue has been fixed in n8n versions 1.123.23 and 2.6.4. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations: Restrict n8n access to fully trusted users only, and/or disable external secrets integration until the patch can be applied. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00265 18th percentileScored 2026-11-07
Fix Fixed n8n (n8n-io): 1.123.23, 2.6.4n8n (npm): 1.123.23, 2.6.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
n8nn8nbefore 1.123.23; 2.0.0-rc.0 to before 2.6.41.123.23, 2.6.4Patch availableCNA
—n8n (npm)before 1.123.231.123.23Patch availableGHSA-fxcw-h3qj-8m8p
—n8n (npm)2.0.0-rc.0 to before 2.6.42.6.4Patch availableGHSA-fxcw-h3qj-8m8p
  • n8n Vendorn8n Affected before 1.123.23; 2.0.0-rc.0 to before 2.6.4 Fixed in 1.123.23, 2.6.4 Patch available CNA
  • n8n (npm) Vendor— Affected before 1.123.23 Fixed in 1.123.23 Patch available GHSA-fxcw-h3qj-8m8p
  • n8n (npm) Vendor— Affected 2.0.0-rc.0 to before 2.6.4 Fixed in 2.6.4 Patch available GHSA-fxcw-h3qj-8m8p

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*before 1.123.23; 2.0.0 to before 2.6.4Vulnerablen8n
  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* Versions before 1.123.23; 2.0.0 to before 2.6.4 Vulnerable ·n8n

Remediation

  • Fix · CNA n8n (n8n-io) Fixed in 1.123.23, 2.6.4
  • Fix · GHSA-fxcw-h3qj-8m8p n8n (npm) Fixed in 1.123.23 Advisory →
  • Fix · GHSA-fxcw-h3qj-8m8p n8n (npm) Fixed in 2.6.4 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-33722
  2. 2026-10-03 Alias added: GHSA-fxcw-h3qj-8m8p

References

Advisory 2

Other 1

  • TI-2025-42131 n8n Vulnerable to Remote Code Execution via Expression Injection KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-17560 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling CVSS 3.1CRITICAL 10.0
  • TI-2026-01167 Authenticated users can bypass the Expression sandbox mechanism to achieve full remote… CVSS 3.1CRITICAL 9.9
  • TI-2026-00644 Sandbox escape in n8n Python task runner allows for arbitrary code execution on the underlying host. CVSS 3.1CRITICAL 9.9
  • TI-2025-35293 An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3… CVSS 3.1HIGH 8.8
  • TI-2023-12275 The n8n package 0.218.0 for Node.js allows Escalation of Privileges. CVSS 3.1HIGH 8.8
See all 178 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences