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CVE-2026-27574— OneUptime: node:vm sandbox escape in probe allows any project member to achieve RCE

Quick assessment

Affected
OneUptime oneuptime
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OneUptime是OneUptime开源的一个全面的解决方案。用于监控和管理您的在线服务。 OneUptime 9.5.13及之前版本存在代码注入漏洞，该漏洞源于自定义JavaScript监控功能使用不安全的node:vm模块执行用户代码，可能导致沙箱逃逸和集群完全破解。

CVSS 10.0 · Critical EPSS 0.62% · P48
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I. Basic Information for CVE-2026-27574

Vulnerability Information
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Vulnerability Title
OneUptime: node:vm sandbox escape in probe allows any project member to achieve RCE
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
OneUptime 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OneUptime是OneUptime开源的一个全面的解决方案。用于监控和管理您的在线服务。 OneUptime 9.5.13及之前版本存在代码注入漏洞，该漏洞源于自定义JavaScript监控功能使用不安全的node:vm模块执行用户代码，可能导致沙箱逃逸和集群完全破解。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
OneUptime oneuptime < 10.0.5 -

II. Public POCs for CVE-2026-27574

# POC Description Source Link Shenlong Link
1 None https://github.com/mbanyamer/CVE-2026-27574-OneUptime-RCE POC Details
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III. Intelligence Information for CVE-2026-27574

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Patches & Fixes for CVE-2026-27574 (1)

Vendor Advisories for CVE-2026-27574 (1)

IV. Related Vulnerabilities

Same product: oneuptime
Same vendor: OneUptime
Same weakness: CWE-94

V. Comments for CVE-2026-27574

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