Summary
OneUptime:: node:vm sandbox escape in probe allows any project member to achieve RCE
Impact
This is a code injection vulnerability affecting any OneUptime deployment with open registration or any trusted user with ProjectMember access. The attacker gets arbitrary command execution on the probe host, all cluster credentials from the environment, and with host networking can directly connect to PostgreSQL, Redis, and ClickHouse using those credentials. One monitor creation → full cluster compromise.
The straightforward fix is to replace node:vm with the isolated-vm npm package, which provides real V8 isolate sandboxing and is the standard solution for this exact problem in the Node.js ecosystem.
Untrusted input is evaluated as executable code within the application's runtime environment. Typical impact: arbitrary code execution within the application's privilege context.
CVE-2026-27574 has a CVSS score of 9.9 (Critical). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (10.0.0); upgrading removes the vulnerable code path.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.
Remediation advice
Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
Frequently Asked Questions
- What is CVE-2026-27574? CVE-2026-27574 is a critical-severity code injection vulnerability in @oneuptime/common (npm), affecting versions < 10.0.0. It is fixed in 10.0.0. Untrusted input is evaluated as executable code within the application's runtime environment.
- How severe is CVE-2026-27574? CVE-2026-27574 has a CVSS score of 9.9 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
- Which versions of @oneuptime/common are affected by CVE-2026-27574? @oneuptime/common (npm) versions < 10.0.0 is affected.
- Is there a fix for CVE-2026-27574? Yes. CVE-2026-27574 is fixed in 10.0.0. Upgrade to this version or later.
- Is CVE-2026-27574 exploitable, and should I be worried? Whether CVE-2026-27574 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether CVE-2026-27574 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix CVE-2026-27574? Upgrade
@oneuptime/commonto 10.0.0 or later.