漏洞信息
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Vulnerability Title
n8n - Permission Bypass via Expression Parser Mismatch in External Secrets
Vulnerability Description
n8n before versions 1.123.61, 2.27.4, and 2.28.1 contains a permission bypass vulnerability in external secrets handling caused by a mismatch between the static validation check and the runtime expression engine. An authenticated user with credential create or update permissions but without the externalSecret:list scope can embed external secret references into credentials in forms the static validation does not detect; these references resolve at workflow execution time, exposing secret values the user is not authorized to access. This issue only affects instances where an external secrets provider is configured and Advanced Permissions are in use.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
通过用户控制密钥绕过授权机制
Vulnerability Title
n8n 授权问题漏洞
Vulnerability Description
n8n是n8n公司开源的一个可扩展的工作流自动化工具。 n8n 1.123.61之前版本、2.27.4版本之前和2.28.1版本之前存在授权问题漏洞,该漏洞源于外部秘密处理过程中静态验证检查与运行时表达式引擎之间的不匹配,导致权限绕过,允许具有凭证创建或更新权限但缺少externalSecret:list范围的认证用户,以静态验证无法检测的形式将外部秘密引用嵌入凭证中,这些引用在工作流执行时解析,暴露用户未授权访问的秘密值。
CVSS Information
N/A
Vulnerability Type
N/A