{"id":"CVE-2026-30957","state":"PUBLISHED","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.","publishedAt":"2026-03-10T16:58:28.216Z","updatedAt":"2026-03-10T18:22:16.657Z","severity":{"score":10,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["OneUptime oneuptime"],"affected":[{"vendor":"OneUptime","product":"oneuptime","versions":[{"version":"< 10.0.21","status":"affected"}]}],"references":["https://github.com/OneUptime/oneuptime/security/advisories/GHSA-jw8q-gjvg-8w4q","https://github.com/OneUptime/oneuptime/releases/tag/10.0.21"],"weaknesses":["CWE-749"],"ingestedAt":"2026-10-29T20:11:31.369Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/30xxx/CVE-2026-30957.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-30957","state":"PUBLISHED","datePublished":"2026-03-10T16:58:28.216Z","dateUpdated":"2026-03-10T18:22:16.657Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-03-07T17:34:39.981Z"},"containers":{"cna":{"title":"OneUptime Synthetic Monitor RCE via exposed Playwright browser object","descriptions":[{"lang":"en","value":"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":[{"vendor":"OneUptime","product":"oneuptime","versions":[{"version":"< 10.0.21","status":"affected"}]}],"references":[{"url":"https://github.com/OneUptime/oneuptime/security/advisories/GHSA-jw8q-gjvg-8w4q","name":"https://github.com/OneUptime/oneuptime/security/advisories/GHSA-jw8q-gjvg-8w4q","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/OneUptime/oneuptime/releases/tag/10.0.21","name":"https://github.com/OneUptime/oneuptime/releases/tag/10.0.21","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-749","lang":"en","description":"CWE-749: Exposed Dangerous Method or Function","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-10T16:58:28.216Z"},"source":{"advisory":"GHSA-jw8q-gjvg-8w4q","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-10T18:21:28.474564Z","id":"CVE-2026-30957","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-10T18:22:16.657Z"}}]}}}