CVE-2026-77075 (GCVE-0-2026-77075)
Vulnerability from cvelistv5 – Published: 2026-08-20 11:21 – Updated: 2026-08-21 11:21
VLAI
EPSS
VEX
Title
n8n before 1.123.69 Expression Injection via Resource Locator
Summary
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).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-20 13:41 UTC
CWE
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/n8n-io/n8n/security/advisories… | vendor-advisory |
| https://www.vulncheck.com/advisories/n8n-before-e… | third-party-advisory |
Impacted products
Date Public
2026-08-05 00:00
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