CVE-2026-30958: Hackerbay Oneuptime

High severity, CVSS 8.6. EPSS: 1.1% chance of exploitation in the next 30 days.

OneUptime is a solution for monitoring and managing online services. Prior to 10.0.21, an unauthenticated path traversal in the /workflow/docs/:componentName endpoint allows reading arbitrary files from the server filesystem. The componentName route parameter is concatenated directly into a file path passed to res.sendFile() in orker/FeatureSet/Workflow/Index.ts with no sanitization or authentication middleware. This vulnerability is fixed in 10.0.21.

Affected products

• Hackerbay Oneuptime: before 10.0.21 (fixed in 10.0.21)

Published 2026-03-10. Last modified 2026-10-07.