CVE-2026-29779 — UptimeFlare: Montior config / Credentials in `workerConfig` exposed in client-side JavaScript bundle
UptimeFlare is a serverless uptime monitoring & status page solution, powered by Cloudflare Workers. Prior to commit 377a596, configuration file uptime.config.ts exports both pa…
Published: 2026-03-07 · CVSS: 7.5 · CVSS 3.1
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: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7