n8n before 1.123.69, 2.x before 2.33.4, and 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An authenticated member can store a malicious value so that when another user opens the affected node in the editor, the injected expression is evaluated as JavaScript in the victim's authenticated session (cross-user script execution).

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Workaround

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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 2.34.x before 2.34.1 contain an expression injection vulnerability in resource-locator field link preview rendering. The editor spliced the field's stored value directly into the node type's URL template without checking for expression syntax. An authenticated member can store a malicious value so that when another user opens the affected node in the editor, the injected expression is evaluated as JavaScript in the victim's authenticated session (cross-user script execution).
Title n8n before 1.123.69 Expression Injection via Resource Locator
First Time appeared N8n
N8n n8n
Weaknesses CWE-94
CPEs cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
Vendors & Products N8n
N8n n8n
References
Metrics cvssV4_0

{'score': 8.4, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-20T11:37:12.560Z

Reserved: 2026-08-20T10:51:39.784Z

Link: CVE-2026-77075

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-20T12:16:38.870

Modified: 2026-08-20T12:16:38.870

Link: CVE-2026-77075

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses