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CVE-2026-118644— n8n before 2.41.5 and 2.42.2 Credential Theft via Error-Workflow Context Inheritance

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 2.41.5 之前的版本，以及 2.42.x 系列中 2.42.2 之前的版本中，当工作流执行失败时，系统会将完整的执行上下文（包括发起该次运行的用户身份）传递给配置的错误处理工作流。项目编辑者可以将同事工作流设置中的 指向由自己拥有的错误处理工作流；当该同事的工作流执行失败时，攻击者即可继承其用户身份，进而解析并获取该同事专属的动态凭证秘密（dynamic credential secrets）。

CVSS 7.7 · High

Affected Version Matrix 4

VendorProduct Version RangeStatus
n8n-io n8n 2.42.0< 2.42.2 affected
2.42.2 unaffected
< 2.41.5 affected
2.41.5 unaffected
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I. Basic Information for CVE-2026-118644

Vulnerability Information
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Vulnerability Title
n8n before 2.41.5 and 2.42.2 Credential Theft via Error-Workflow Context Inheritance
Source: CVE Program / CVE List V5
Vulnerability Description
n8n before 2.41.5 and 2.42.x before 2.42.2 passes a failed workflow's full execution context, including the identity of the user who started the run, to the configured error workflow. A project editor can set a colleague's workflow settings.errorWorkflow to an error workflow they own, inherit the colleague's identity when that workflow fails, and resolve the colleague's per-user dynamic credential secrets.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权授予不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
n8n-io n8n 2.42.0 ~ 2.42.2 -
n8n-io n8n 0 ~ 2.41.5 -

II. Public POCs for CVE-2026-118644

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III. Intelligence Information for CVE-2026-118644

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Vendor Advisories for CVE-2026-118644 (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-2026-118679 7.5 HIGH n8n before 1.123.83, 2.41.4, and 2.42.1 Slack Token Exfiltration via Slack Trigger
CVE-2026-118641 7.5 HIGH n8n before 1.123.85, 2.43.5, and 2.44.1 OData $filter Injection via Outlook and SharePoint
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-266