High severity7.5NVD Advisory· Published Mar 7, 2026· Updated Jun 17, 2026
CVE-2026-29779
CVE-2026-29779
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
2- Range: < commit 377a596
- Range: < 377a5963c66ba9a798abebfe8d80378b053435e9
Patches
Vulnerability mechanics
References
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