CVE-2026-21858

CRITICAL10.0EPSS 6.9%

n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling

發布日:2026/1/7修改日:2026/2/3

描述

### Impact A vulnerability in n8n allows an attacker to access files on the underlying server through execution of certain form-based workflows. A vulnerable workflow could grant access to an unauthenticated remote attacker. This could result in exposure of sensitive information stored on the system and may enable further compromise depending on deployment configuration and workflow usage. ### Patches The issue has been fixed in n8n version 1.121.0. Users should upgrade to this version or later to remediate the vulnerability. ### Workarounds No official workarounds are available. As a temporary mitigation, users may restrict or disable publicly accessible webhook and form endpoints until upgrading.

受影響套件(1)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1CRITICAL10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

參考連結(4)