Description

OneUptime is an open-source monitoring and observability platform. Prior to version 10.0.35, a low-privileged authenticated user (ProjectMember) can achieve remote command execution on the Probe container/host by abusing Synthetic Monitor Playwright script execution. Synthetic monitor code is executed in VMRunner.runCodeInNodeVM with a live Playwright page object in context. The sandbox relies on a denylist of blocked properties/methods, but it is incomplete. Specifically, _browserType and launchServer are not blocked, so attacker code can traverse `page.context().browser()._browserType.launchServer(...)` and spawn arbitrary processes. Version 10.0.35 contains a patch.

INFO

Published Date :

2026-03-26T13:40:12.145Z

Last Modified :

2026-03-26T13:56:13.442Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33396 vulnerability.

Vendors Products
Hackerbay
  • Oneuptime
Oneuptime
  • Oneuptime
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33396.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact