CVE-2026-30957

9.9 CRITICAL
Published: March 10, 2026 Modified: March 12, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/OneUptime/oneuptime/releases/tag/10.0.21
Source: security-advisories@github.com
Product Release Notes
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-jw8q-gjvg-8w4q
Source: security-advisories@github.com
Exploit Vendor Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.9 / 10.0
EPSS (Exploit Probability)
0.2%
46th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

hackerbay