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CVE-2026-77081

n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.123.69, 2.34.1, 2.33.4
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

n8n before 1.123.69, 2.x before 2.33.4, and 2.x before 2.34.1 contain an allowed-domains bypass in the GraphQL node. When the node's Authentication parameter is set to expression mode, every authentication-gated credential selector is treated as active; if two credentials of different types are attached, the node enforces the allowed-domains policy of only the first credential while still attaching material from both. An authenticated user with workflow-authoring rights can thereby send a domain-restricted credential to an attacker-controlled endpoint, exfiltrating it with the leaked credential's permissions.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • n8n-io n8n

    fixed in 1.123.69

  • n8n-io n8n

    From 2.34.0 · fixed in 2.34.1

  • n8n-io n8n

    From 2.0.0 · fixed in 2.33.4

References 2

GitHub · n8n-io/n8n

vulncheck.com