How serious is CVE-2026-29779?

This vulnerability has a CVSS score of 7.5 out of 10, classified as HIGH severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2026-29779?

Yes, proof-of-concept exploit code for CVE-2026-29779 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2026-29779?

CVE-2026-29779 affects lyc8503 uptimeflare. Check the full CVE details for specific version information.

How do I fix CVE-2026-29779?

To remediate CVE-2026-29779, check for security patches from lyc8503. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-29779

High

|7.5

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker to access sensitive server-side configuration data that should only be visible to the server, as it was unintentionally included in the client-side code served to all users. To exploit this, an attacker simply needs to visit the affected website, where they could view the exposed sensitive information.

Technical 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.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactNone

Availability ImpactNone

ScopeUnchanged

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$2,053($1K-$5K)

Vendor Response

Grade APatched in 4 days

Quick Information

Published

Mar 7, 2026

about 1 month ago

Last Modified

Mar 11, 2026

27 days ago

Vendor

lyc8503

Product

uptimeflare