n8n before 1.123.80, 2.39.6, and 2.40.1 PostgREST Filter Injection via Supabase
n8n versions before 1.123.80, from 2.0.0 before 2.39.6, and from 2.40.0 before 2.40.1 contain a filter injection vulnerability in the Supabase node's Filters (String) mode that fails to escape field values. Attackers can inject filter expressions from untrusted input to read all table rows, update all records, or delete entire tables in a single request.
CVE-2026-103248
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-103248
n8n
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "n8n-io",
"product": "n8n",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.123.80",
"versionType": "semver"
},
{
"status": "affected",
"version": "2.0.0",
"lessThan": "2.39.6",
"versionType": "semver"
},
{
"status": "affected",
"version": "2.40.0",
"lessThan": "2.40.1",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/n8n",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-103248
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #5114 · Revision 1
- Added to Heist Feed
- Publisher date