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CVE-2026-77081

n8n before 1.123.69 Allowed-Domains Bypass via GraphQL Node

Published: Aug 20, 2026Updated: Sep 1, 2026 Sources: CVE List NVDCWE-639
7.1HIGH
NVD MITRE
EPSS Score
0.2%
Top 87.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Workaround Only
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-639

Affected Products

n8n
oss-project
n8nSaaSWeb App
Cloud & SaaS / saas-application
n8n-io
commercial·DEaka n8n
n8nOn-premWeb App
Cloud & SaaS / container-orchestration

Exploitability

Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
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References

https://github.com/n8n-io/n8n/security/advisories/GHSA-wcv8-x773-j96r
github.com
https://www.vulncheck.com/advisories/n8n-before-allowed-domains-bypass-via-graphql-node
vulncheck.com

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