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I. Basic Information for CVE-2026-29779
Vulnerability Information

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Vulnerability Title
UptimeFlare: Montior config / Credentials in `workerConfig` exposed in client-side JavaScript bundle
Source: NVD (National Vulnerability Database)
Vulnerability Description
UptimeFlare is a serverless uptime monitoring & status page solution, powered by Cloudflare Workers. Prior to commit 377a596, configuration file uptime.config.ts exports both pageConfig (safe for client use) and workerConfig (server-only, contains sensitive data) from the same module. Due to pages/incidents.tsx importing and using workerConfig directly inside client-side component code, the entire workerConfig object was included in the client-side JavaScript bundle served to all visitors. This issue has been patched via commit 377a596.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
UptimeFlare 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
UptimeFlare是lyc8503个人开发者的一个基于云服务的网站可用性监控与状态页面软件。 UptimeFlare存在信息泄露漏洞,该漏洞源于客户端代码直接导入服务器端配置,可能导致敏感数据泄露。
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
VendorProductAffected VersionsCPESubscribe
lyc8503UptimeFlare < 377a5963c66ba9a798abebfe8d80378b053435e9 -
II. Public POCs for CVE-2026-29779
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III. Intelligence Information for CVE-2026-29779
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IV. Related Vulnerabilities
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