Is CVE-2026-30957 actively exploited?

CVE-2026-30957 has no public evidence of in-the-wild exploitation as of 2026-03-11.

What is the CVSS score for CVE-2026-30957?

CVE-2026-30957 has a CVSS score of 9.9 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

How do I patch CVE-2026-30957?

Vendor patch guidance is linked from the references on this page. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-30957.

Which products are affected by CVE-2026-30957?

Affected products for CVE-2026-30957 are listed on this page once vendor data becomes available.

Fix CVE-2026-30957 - CRITICAL Vulnerability

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-749

Metadata

Primary Vendor: UNKNOWN
Published: 3/10/2026
Last Modified: 3/11/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

No affected products information available.

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-30957. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-30957

View on NIST NVD

CVE-2026-30957 vulnerability