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.
Metrics
Affected Vendors & Products
Advisories
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Fixes
Solution
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Workaround
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References
History
Thu, 20 Aug 2026 11:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-639 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:* | |
| Vendors & Products |
N8n
N8n n8n |
|
| References |
| |
| Metrics |
cvssV4_0
|
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-20T15:19:35.904Z
Reserved: 2026-08-20T10:55:09.093Z
Link: CVE-2026-77081
No data.
Status : Received
Published: 2026-08-20T12:16:39.590
Modified: 2026-08-20T16:18:34.783
Link: CVE-2026-77081
No data.
OpenCVE Enrichment
No data.
Weaknesses