CVE-2026-118641

n8n before 1.123.85, 2.43.5, and 2.44.1 OData $filter Injection via Outlook and SharePoint Nodes

State: Published
Severity: 6.9 Medium
Published: Oct 28, 2026
Updated: Oct 29, 2026
Reserved: Oct 28, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:H/SI:L/SA:N	VulnCheck
3.1	7.5 High	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N	VulnCheck

Weaknesses

CWE-943 Improper Neutralization of Special Elements in Data Query Logic

Affected Products

Product	Versions
n8nn8n-io	before 1.123.85Affected 1.123.85Not affected
n8nn8n-io	2.44.0 to before 2.44.1Affected 2.44.1Not affected
n8nn8n-io	2.0.0 to before 2.43.5Affected 2.43.5Not affected

References

GitHub Security Advisory (GHSA-mgpr-56r4-5c67)vendor-advisory
VulnCheck Advisory: n8n before 1.123.85, 2.43.5, and 2.44.1 OData $filter Injection via Outlook and SharePoint Nodesthird-party-advisory

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