CVE-2026-34969— Nhost Leaks the Refresh Token via URL Query Parameter in OAuth Provider Callback
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I. Basic Information for CVE-2026-34969
Vulnerability Information
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Vulnerability Title
Nhost Leaks the Refresh Token via URL Query Parameter in OAuth Provider Callback
Source: NVD (National Vulnerability Database)
Vulnerability Description
Nhost is an open source Firebase alternative with GraphQL. Prior to 0.48.0, the auth service's OAuth provider callback flow places the refresh token directly into the redirect URL as a query parameter. Refresh tokens in URLs are logged in browser history, server access logs, HTTP Referer headers, and proxy/CDN logs. Note that the refresh token is one-time use and all of these leak vectors are on owned infrastructure or services integrated by the application developer. This vulnerability is fixed in 0.48.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Nhost 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nhost是Nhost开源的一个后端即服务平台。 Nhost 0.48.0之前版本存在安全漏洞，该漏洞源于身份验证服务的OAuth提供者回调流程将刷新令牌直接放入重定向URL作为查询参数，可能导致刷新令牌泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-34969
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