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).
{
"cna_assigner": "VulnCheck",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/77xxx/CVE-2026-77075.json",
"cwe_ids": [
"CWE-94"
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.123.69"
},
{
"introduced": "2.34.0"
},
{
"fixed": "2.34.1"
},
{
"introduced": "2.0.0"
},
{
"fixed": "2.33.4"
}
],
"source": "AFFECTED_FIELD"
}