CVE-2026-126383: n8n before 1.123.89 NoSQL Injection via MongoDB Node Update Key
n8n-io · n8n
Vendor fix available · Affected: n8n-io · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 33% of scored CVEs
DescriptionCVE.org
n8n before 1.123.89, 2.x before 2.45.5, 2.46.x before 2.46.1, and 3.x before 3.0.1 contains a NoSQL injection vulnerability in the MongoDB node's Update and Find And Replace operations due to insufficient validation of the update key value taken from incoming items. Attackers who can supply untrusted input, such as a webhook body, to a workflow using these operations can make the node match and overwrite unintended documents or insert new documents in the MongoDB database.
Affected products4
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- n8n-io · n8nbefore 1.123.89
- n8n-io · n8nfrom 2.46.0 before 2.46.1
- n8n-io · n8nfrom 2.0.0 before 2.45.5
- n8n-io · n8nfrom 3.0.0 before 3.0.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- n8n-io
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-126383 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.