CVE-2026-77081
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| n8n-io | n8n | 0 < 1.123.69 | affected |
| n8n-io | n8n | 1.123.69 | unaffected |
| n8n-io | n8n | 0 < 2.34.1 | affected |
| n8n-io | n8n | 2.34.1 | unaffected |
| n8n-io | n8n | 0 < 2.33.4 | affected |
| n8n-io | n8n | 2.33.4 | unaffected |
Weaknesses
- CWE-639: Authorization Bypass Through User-Controlled Key
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-wcv8-x773-j96r
- https://www.vulncheck.com/advisories/n8n-before-allowed-domains-bypass-via-graphql-node
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.