Vulnerability in N8n-Io N8n
CVE-2026-118641
n8n before 1.123.85, 2.x before 2.43.5, and 2.44.x before 2.44.1 contains an OData $filter injection vulnerability in the Microsoft Outlook contact lookup and Microsoft SharePoint v1 item update nodes, which build $filter string literals from expression-bindable parameters without escaping. Attackers who supply untrusted input to such workflows can inject single quotes to dump the bound mailbox's entire contact list or redirect SharePoint writes onto unintended list items within the stored credential's scope.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-mgpr-56r4-5c67 (vendor-advisory)
- www.vulncheck.com/advisories/n8n-before-1.123.85-2.43.5-and-2.44.1-odata-filter… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-118641?
- CVE-2026-118641 is a high-severity vulnerability in N8n-Io N8n, classified under Improper Neutralization of Special Elements in Data Query Logic. CVSS score: 7.5/10. Published 2026-10-28.
- How severe is CVE-2026-118641?
- High severity. CVSS v3 base score is 7.5 out of 10.