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CVE-2026-27574GHSA-V264-XQH4-9XMM

OneUptime: node:vm sandbox escape in probe allows any project member to achieve RCE

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 10.0.5, 10.0.0
1 proof of concept on GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: total

Summary

OneUptime is a solution for monitoring and managing online services. In versions 9.5.13 and below, custom JavaScript monitor feature uses Node.js's node:vm module (explicitly documented as not a security mechanism) to execute user-supplied code, allowing trivial sandbox escape via a well-known one-liner that grants full access to the underlying process. Because the probe runs with host networking and holds all cluster credentials (ONEUPTIME_SECRET, DATABASE_PASSWORD, REDIS_PASSWORD, CLICKHOUSE_PASSWORD) in its environment variables, and monitor creation is available to the lowest role (ProjectMember) with open registration enabled by default, any anonymous user can achieve full cluster compromise in about 30 seconds. This issue has been fixed in version 10.0.5.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • OneUptime oneuptime

    fixed in 10.0.5

  • @oneuptime/commonnpm

    fixed in 10.0.0

References 3

GitHub · OneUptime/oneuptime

GitHub · mbanyamer/CVE-2026-27574-OneUptime-RCE