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CVE-2026-118641— n8n before 1.123.85, 2.43.5, and 2.44.1 OData $filter Injection via Outlook and SharePoint Nodes

Quick assessment

Affected
n8n-io n8n
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 n8n 1.123.85 之前的版本、2.x 系列中 2.43.5 之前的版本，以及 2.44.x 系列中 2.44.1 之前的版本中，Microsoft Outlook 联系人查找节点和 Microsoft SharePoint v1 项更新节点存在 OData 注入漏洞。这些节点在构建 字符串字面量时，未对可绑定表达式的参数进行转义处理。攻击者若向此类工作流提供不可信输入，即可注入单引号，从而窃取绑定邮箱的完整联系人列表，或将 SharePoint 写入操作重定向到存储凭证范围内的非预期列表项。

CVSS 7.5 · High

Affected Version Matrix 6

VendorProduct Version RangeStatus
n8n-io n8n < 1.123.85 affected
1.123.85 unaffected
2.44.0< 2.44.1 affected
2.44.1 unaffected
2.0.0< 2.43.5 affected
2.43.5 unaffected
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I. Basic Information for CVE-2026-118641

Vulnerability Information
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Vulnerability Title
n8n before 1.123.85, 2.43.5, and 2.44.1 OData $filter Injection via Outlook and SharePoint Nodes
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
数据查询逻辑中特殊元素的不当中和
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
n8n-io n8n 0 ~ 1.123.85 -
n8n-io n8n 2.44.0 ~ 2.44.1 -
n8n-io n8n 2.0.0 ~ 2.43.5 -

II. Public POCs for CVE-2026-118641

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III. Intelligence Information for CVE-2026-118641

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Other References for CVE-2026-118641 (2)

Same Patch Batch · n8n-io · 2026-10-28 · 15 CVEs total

CVE-2026-118645 8.7 HIGH n8n before 1.123.85, 2.43.5, and 2.44.1 Filter Injection via Quick Base Node Where Paramet
CVE-2026-118649 8.3 HIGH n8n before 2.43.5 and 2.44.1 Authorization Bypass via Crafted Workflow ID in Data Tables
CVE-2026-118647 8.2 HIGH n8n before 1.123.85, 2.43.5, and 2.44.1 SeaTable Trigger API Token Exposure via Execution
CVE-2026-118643 8.2 HIGH n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Exposure via Node Execution Error Data
CVE-2026-118644 7.7 HIGH n8n before 2.41.5 and 2.42.2 Credential Theft via Error-Workflow Context Inheritance
CVE-2026-118679 7.5 HIGH n8n before 1.123.83, 2.41.4, and 2.42.1 Slack Token Exfiltration via Slack Trigger
CVE-2026-118648 7.3 HIGH n8n before 1.123.85, 2.43.5, and 2.44.1 Stored XSS via Webhook Responses Missing Sandbox P
CVE-2026-118675 7.1 HIGH n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Guard Bypass via Execute Sub-workflow
CVE-2026-118676 7.1 HIGH n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Permission Check Bypass
CVE-2026-118642 7.1 HIGH n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Permission Check Bypass via Inline Sub-
CVE-2026-118678 7.1 HIGH n8n before 2.41.4 and 2.42.1 Prototype Pollution DoS via Workflow History Compaction
CVE-2026-118646 6.5 MEDIUM n8n before 1.123.85, 2.43.5, and 2.44.1 ReDoS via Read/Write Files Node
CVE-2026-118677 5.9 MEDIUM n8n before 2.41.4 and 2.42.1 Local Gateway Deep-Link Silent Re-pairing to Attacker Instanc
CVE-2026-118640 5.4 MEDIUM n8n before 1.123.85, 2.43.5, and 2.44.1 Chat Hub Authorization Bypass

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-943