CVE-2026-27955
Full vulnerability record from the local CVENow database.
Description
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the executeInDocker() helper wraps commands in bash -c '{$command}' without escaping single quotes. User-controlled docker_compose_custom_build_command and docker_compose_custom_start_command fields are interpolated directly, allowing a single quote to break out of the bash -c argument and execute commands on the managed server host (outside the intended Docker container context). This vulnerability is fixed in 4.0.0-beta.464.
Severity
MEDIUM
CVSS score
6.6
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-06-30 15:16:52.527000
Last modified
2026-10-25 21:10:00.770000
View original CVE JSON
{
"id": "CVE-2026-27955",
"sourceIdentifier": "[email protected]",
"published": "2026-06-30T15:16:52.527",
"lastModified": "2026-10-25T21:10:00.770",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the executeInDocker() helper wraps commands in bash -c '{$command}' without escaping single quotes. User-controlled docker_compose_custom_build_command and docker_compose_custom_start_command fields are interpolated directly, allowing a single quote to break out of the bash -c argument and execute commands on the managed server host (outside the intended Docker container context). This vulnerability is fixed in 4.0.0-beta.464."
},
{
"lang": "es",
"value": "Coolify es una herramienta de código abierto y autoalojable para gestionar servidores, aplicaciones y bases de datos. Antes de la versión 4.0.0-beta.464, el asistente executeInDocker() envuelve los comandos en bash -c ’{$command}’ sin escapar las comillas simples. Los campos controlados por el usuario docker_compose_custom_build_command y docker_compose_custom_start_command se interpolan directamente, permitiendo que una comilla simple escape del argumento bash -c y ejecute comandos en el host del servidor gestionado (fuera del contexto del contenedor Docker previsto). Esta vulnerabilidad está corregida en la versión 4.0.0-beta.464."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "coollabsio",
"product": "coolify",
"versions": [
{
"version": "< 4.0.0-beta.464",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L",
"baseScore": 6.6,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "HIGH",
"userInteraction": "NONE",
"scope": "CHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.3,
"impactScore": 3.7
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-30T15:00:56.216890Z",
"id": "CVE-2026-27955",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-78"
}
]
}
],
"references": [
{
"url": "https://github.com/coollabsio/coolify/security/advisories/GHSA-6h8g-wpxp-cq98",
"source": "[email protected]"
},
{
"url": "https://github.com/coollabsio/coolify/security/advisories/GHSA-6h8g-wpxp-cq98",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
]
}