CVE-2026-29779 (GCVE-0-2026-29779)

Vulnerability from cvelistv5 – Published: 2026-03-07 15:19 – Updated: 2026-03-09 18:27
VLAI
Title
UptimeFlare: Montior config / Credentials in `workerConfig` exposed in client-side JavaScript bundle
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-09 17:43 UTC
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
lyc8503 UptimeFlare Affected: < 377a5963c66ba9a798abebfe8d80378b053435e9
Create a notification for this product.
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