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
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Puntuación base: 9.9
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 1.06%
- Percentil entre todas las CVEs puntuadas: 64
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1210Exploitation of Remote Serviceslateral movement85 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation75 %
Acceso remoto con PR:L requiere privilegios previos (usuario autenticado); ejecución de comandos arbitrarios en servidor probe mediante APIs de Playwright; escalada implícita a root del contenedor.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-749
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-30957",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-30957",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-03-10T18:21:28.474564Z"
}
}
],
"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,
"exploitabilityScore": 3.1
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "OneUptime",
"product": "oneuptime",
"versions": [
{
"status": "affected",
"version": "< 10.0.21"
}
]
}
]
}
],
"published": "2026-03-10T18:18:54.737",
"references": [
{
"url": "https://github.com/OneUptime/oneuptime/releases/tag/10.0.21",
"tags": [
"Product",
"Release Notes"
],
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/OneUptime/oneuptime/security/advisories/GHSA-jw8q-gjvg-8w4q",
"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 10.0.21, 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."
},
{
"lang": "es",
"value": "OneUptime es una solución para monitorear y gestionar servicios en línea. Antes de la versión 10.0.21, los Monitores Sintéticos de OneUptime permiten a un usuario de proyecto autenticado con bajos privilegios ejecutar comandos arbitrarios en el servidor/contenedor oneuptime-probe. La causa raíz es que el código no confiable del Monitor Sintético se ejecuta dentro de la vm de Node mientras que objetos de navegador y página de Playwright del reino del host en vivo están expuestos a él. Un usuario malicioso puede llamar a las API de Playwright en el objeto de navegador inyectado y hacer que la sonda genere un ejecutable controlado por el atacante. Este es un problema de ejecución remota de código de lado del servidor. No requiere un escape de sandbox de vm separado. Esta vulnerabilidad está corregida en la versión 10.0.21."
}
],
"lastModified": "2026-06-17T10:33:13.383",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:hackerbay:oneuptime:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "ED54DE0A-2CD8-4372-BECA-6F3AF29F2C2B",
"versionEndExcluding": "10.0.21"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "security-advisories@github.com"
}