n8n before 2.41.4 and 2.42.x before 2.42.1 contains an SQL injection vulnerability in version 1 of the Microsoft SQL node, which substitutes Query field expression values directly into SQL text without parameterisation. When a workflow binds untrusted input such as webhook fields to the Query field, unauthenticated external callers can execute arbitrary SQL against the connected database with the stored credential's privileges.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-89"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110840.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2.41.4"
},
{
"introduced": "2.42.0"
},
{
"fixed": "2.42.1"
}
],
"source": "AFFECTED_FIELD"
}