CVE-2026-30957

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.

CVSS v3 9.9 CRITICAL

9.9^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.1 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/OneUptime/oneuptime/releases/tag/10.0.21	Product Release Notes
https://github.com/OneUptime/oneuptime/security/advisories/GHSA-jw8q-gjvg-8w4q	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-10 18:18

Updated : 2026-03-12 14:11

NVD link : CVE-2026-30957

Mitre link : CVE-2026-30957

CVE.ORG link : CVE-2026-30957

JSON object : View

Products Affected

hackerbay

oneuptime

CWE

CWE-749

Exposed Dangerous Method or Function

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