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OpenAdvisories
Critical · 9.2 CVE-2026-35053 EUVD-2026-18542

OneUptime: Unauthenticated Workflow Execution via ManualAPI

Published Apr 2, 2026 · Updated Apr 3, 2026 · Assigned by GitHub_M

Description

OneUptime is an open-source monitoring and observability platform. Prior to version 10.0.42, the Worker service's ManualAPI exposes workflow execution endpoints (GET /workflow/manual/run/:workflowId and POST /workflow/manual/run/:workflowId) without any authentication middleware. An attacker who can obtain or guess a workflow ID can trigger arbitrary workflow execution with attacker-controlled input data, enabling JavaScript code execution, notification abuse, and data manipulation. This issue has been patched in version 10.0.42.

Affected products

VendorProductAffectedFixed
OneUptime oneuptime < 10.0.42 —

References