CVE-2026-29779
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductLyc8503 Uptimeflare
PublishedMar 7, 2026
First seenMar 7, 2026
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- lyc8503 uptimeflare2026-03-04 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lyc8503 uptimeflare | v < 2026-03-04 | 2026-03-04 |
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