{"id":"CVE-2026-30957","revision":"e0eeb3421f814b61b3bb6fa21792c79b","records":[{"revision":"e0eeb3421f814b61b3bb6fa21792c79b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-30957","aliases":[],"title":"OneUptime Synthetic Monitor RCE via exposed Playwright browser object","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.","state":0,"publishedAt":"2026-03-10T16:58:28.216+00:00","modifiedAt":"2026-03-10T18:22:16.657+00:00","affected":[{"ecosystem":"Vendor product","name":"oneuptime","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"OneUptime\",\n                    \"product\": \"oneuptime\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 10.0.21\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":10,"severity":"CRITICAL"}],"references":["https://github.com/OneUptime/oneuptime/security/advisories/GHSA-jw8q-gjvg-8w4q","https://github.com/OneUptime/oneuptime/releases/tag/10.0.21"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-30957","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-30957","identifiers":["CVE-2026-30957"]},"retained":false,"historicalAffected":[]}],"coverage":[]}