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OpenAdvisories
High · 7.5 CVE-2026-29779 EUVD-2026-10152

UptimeFlare: Montior config / Credentials in `workerConfig` exposed in client-side JavaScript bundle

Published Mar 7, 2026 · Updated Mar 9, 2026 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
lyc8503 UptimeFlare < 377a5963c66ba9a798abebfe8d80378b053435e9 —

References