Is CVE-2026-35053 actively exploited?

CVE-2026-35053 has no public evidence of in-the-wild exploitation as of 2026-04-13.

What is the CVSS score for CVE-2026-35053?

CVE-2026-35053 has a CVSS score of 9.2 (CRITICAL severity). Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2026-35053?

Patch guidance is available from hackerbay security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-35053.

Which products are affected by CVE-2026-35053?

1 product: hackerbay oneuptime.

Fix CVE-2026-35053 - CRITICAL hackerbay oneuptime

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.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-306 · Missing Authentication

Metadata

Primary Vendor: HACKERBAY
Published: 4/2/2026
Last Modified: 4/13/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

hackerbay : oneuptime

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-35053. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-35053

View on NIST NVD

CVE-2026-35053 vulnerability