CVE-2026-30957
Critical · 9.9CVSS
9.9
EPSS
1.2%
Published
Mar 10, 2026
CISA due date
—
The record
OneUptime is a solution for monitoring and managing online services. Prior to 10.0.21, OneUptime Synthetic Monitors allow a low-privileged authenticated project user to execute arbitrary commands on the oneuptime-probe server/container. The root cause is that untrusted Synthetic Monitor code is executed inside Node's vm while live host-realm Playwright browser and page objects are exposed to it. A malicious user can call Playwright APIs on the injected browser object and cause the probe to spawn an attacker-controlled executable. This is a server-side remote code execution issue. It does not require a separate vm sandbox escape. This vulnerability is fixed in 10.0.21.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | @oneuptime/common | 0 | 10.0.21 |
Related vulnerabilities
- GHSA-jw8q-gjvg-8w4q OneUptime has Synthetic Monitor RCE via exposed Playwright browser object Same vulnerability
- CVE-2026-30959 OneUptime is a solution for monitoring and managing online services. Also affects @oneuptime/common
- CVE-2026-30956 OneUptime is a solution for monitoring and managing online services. Also affects @oneuptime/common
- CVE-2026-30921 OneUptime is a solution for monitoring and managing online services. Also affects @oneuptime/common
- CVE-2026-30920 OneUptime is a solution for monitoring and managing online services. Also affects @oneuptime/common
- CVE-2026-30887 OneUptime is a solution for monitoring and managing online services. Also affects @oneuptime/common
- GHSA-cw6x-mw64-q6pv OneUptime has WhatsApp Resend Verification Authorization Bypass Also affects @oneuptime/common
- GHSA-r5v6-2599-9g3m OneUptime has authorization bypass via client‑controlled is-multi-tenant-query header… Also affects @oneuptime/common