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CVE-2026-35053

CRITICAL CVSS 4.0: 9.2 EPSS 0.11%
Updated Apr 03, 2026
Oneuptime
Parameter Value
CVSS 9.2 (CRITICAL)
Fixed In 10.0.42
Type CWE-306 (Missing Authentication for Critical Function)
Vendor Oneuptime
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0