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VULNERABILITIES

CVE-2026-77075 Details

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).

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.3 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/n8n-io/n8n/security/advisories/GHSA-fh4c-9rr2-p7qc [email protected]MitigationVendor Advisory
https://www.vulncheck.com/advisories/n8n-before-expression-injection-via-resource-locator [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-94Improper Control of Generation of Code ('Code Injection')[email protected]

Affected Products

ProductVersions
n8n n8n
< 1.123.69
>= 2.33.0, < 2.33.4
2.34.0

CPE

  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*
  • cpe:2.3:a:n8n:n8n:2.34.0:*:*:*:*:node.js:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-77075
NVD Published Date:
Aug 20, 2026
NVD Last Modified:
Sep 1, 2026
Source:
[email protected]
CVE-2026-77075 Details - Not Deferred