---
id: CVE-2026-35053
title: OneUptime is an open-source monitoring and observability platform
summary: >-
  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/:workflo…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-306
vendor: hackerbay
product: oneuptime
affected:
  - oneuptime < 10.0.42
patched:
  - oneuptime 10.0.42
published: '2026-04-02'
updated: '2026-10-06'
sourceUpdated: '2026-10-06T22:10:00.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-35053'
references:
  - url: 'https://github.com/OneUptime/oneuptime/releases/tag/10.0.42'
    label: security-advisories@github.com
  - url: >-
      https://github.com/OneUptime/oneuptime/security/advisories/GHSA-6c3w-7xg4-4cf7
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00823
epssPercentile: 0.5594
ingestedAt: '2026-10-06T22:23:15.914Z'
---

## Overview

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

- `oneuptime < 10.0.42`

## Remediation

Upgrade past the affected range:

- `oneuptime 10.0.42`