CVE-2026-118641

High

Description

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductN8n

PublishedOct 28, 2026

First seenNov 4, 2026

Weakness typeCWE-943CWE-943

How to fix

Update

n8n-io n8n1.123.85, 2.44.1, 2.43.5 or later

Vendor advisories

github.com/n8n-io/n8n/security/advisories/GHSA-mgpr-56r4-5c67

Affected products

Product	Affected versions	Fixed in
n8n-io n8n	v < 1.123.85, 2.44.0 ≤ v < 2.44.1, 2.0.0 ≤ v < 2.43.5	1.123.85, 2.44.1, 2.43.5

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