OneUptime is a solution for monitoring and managing online services. Prior to 10.0.18, OneUptime allows project members to run custom Playwright/JavaScript code via Synthetic Monitors to test websites. However, the system executes this untrusted user code inside the insecure Node.js vm module. By leveraging a standard prototype-chain escape (this.constructor.constructor), an attacker can bypass the sandbox, gain access to the underlying Node.js process object, and execute arbitrary system commands (RCE) on the oneuptime-probe container. Furthermore, because the probe holds database/cluster credentials in its environment variables, this directly leads to a complete cluster compromise. This vulnerability is fixed in 10.0.18.
History

Thu, 12 Mar 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Hackerbay
Hackerbay oneuptime
CPEs cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:*
Vendors & Products Hackerbay
Hackerbay oneuptime

Tue, 10 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
First Time appeared Oneuptime
Oneuptime oneuptime
Vendors & Products Oneuptime
Oneuptime oneuptime
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 09 Mar 2026 23:00:00 +0000

Type Values Removed Values Added
Description OneUptime is a solution for monitoring and managing online services. Prior to 10.0.18, OneUptime allows project members to run custom Playwright/JavaScript code via Synthetic Monitors to test websites. However, the system executes this untrusted user code inside the insecure Node.js vm module. By leveraging a standard prototype-chain escape (this.constructor.constructor), an attacker can bypass the sandbox, gain access to the underlying Node.js process object, and execute arbitrary system commands (RCE) on the oneuptime-probe container. Furthermore, because the probe holds database/cluster credentials in its environment variables, this directly leads to a complete cluster compromise. This vulnerability is fixed in 10.0.18.
Title OneUptime Affected by Unsandboxed Code Execution in Probe Allows Any Project Member to Achieve RCE
Weaknesses CWE-94
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-03-09T22:40:04.425Z

Updated: 2026-03-10T14:00:44.197Z

Reserved: 2026-03-06T00:04:56.700Z

Link: CVE-2026-30887

cve-icon Vulnrichment

Updated: 2026-03-10T14:00:32.517Z

cve-icon NVD

Status : Analyzed

Published: 2026-03-10T17:40:14.887

Modified: 2026-03-12T13:41:22.380

Link: CVE-2026-30887

cve-icon Redhat

No data.