CVE-2026-30921

{"id": "CVE-2026-30921", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-30921", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-03-10T14:13:48.408035Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.9, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 3.1}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "OneUptime", "product": "oneuptime", "versions": [{"status": "affected", "version": "< 10.0.20"}]}]}], "published": "2026-03-10T17:40:16.160", "references": [{"url": "https://github.com/OneUptime/oneuptime/security/advisories/GHSA-4j36-39gm-8vq8", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-749"}]}], "descriptions": [{"lang": "en", "value": "OneUptime is a solution for monitoring and managing online services. Prior to 10.0.20, OneUptime Synthetic Monitors allow low-privileged project users to submit custom Playwright code that is executed on the oneuptime-probe service. In the current implementation, this untrusted code is run inside Node's vm and is given live host Playwright objects such as browser and page. This creates a distinct server-side RCE primitive: the attacker does not need the classic this.constructor.constructor(...) sandbox escape. Instead, the attacker can directly use the injected Playwright browser object to reach browser.browserType().launch(...) and spawn an arbitrary executable on the probe host/container. This vulnerability is fixed in 10.0.20."}, {"lang": "es", "value": "OneUptime es una soluci\u00f3n para monitorear y gestionar servicios en l\u00ednea. Antes de la versi\u00f3n 10.0.20, los Monitores Sint\u00e9ticos de OneUptime permiten a usuarios de proyecto con bajos privilegios enviar c\u00f3digo Playwright personalizado que se ejecuta en el servicio oneuptime-probe. En la implementaci\u00f3n actual, este c\u00f3digo no confiable se ejecuta dentro de la vm de Node y se le otorgan objetos Playwright de host en vivo como navegador y p\u00e1gina. Esto crea una primitiva RCE del lado del servidor distinta: el atacante no necesita el cl\u00e1sico escape de sandbox this.constructor.constructor(...). En su lugar, el atacante puede usar directamente el objeto navegador de Playwright inyectado para alcanzar browser.browserType().launch(...) y generar un ejecutable arbitrario en el host/contenedor de la sonda. Esta vulnerabilidad se corrige en la versi\u00f3n 10.0.20."}], "lastModified": "2026-06-17T10:33:09.203", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "47A8362E-263D-46E0-8339-83F9AFDC973D", "versionEndExcluding": "10.0.20"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}