CVE-2026-46485
Dashy is a self-hostable personal dashboard. Prior to 4.0.8, Dashy deployments using OIDC can allow unauthenticated users or non-admin authenticated users to write changes to the main config.yaml through the config-saving functionality despite configured permissions, allowing unauthorized modification of dashboard configuration and potential service disruption. This issue is fixed in version 4.0.8.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
- Puntuación base: 8.2
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.42%
- Percentil entre todas las CVEs puntuadas: 34
- Fecha de la puntuación: 5/10/2026
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
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1565.001Stored Data Manipulationimpact90 % - Impacto secundario
T1078.001Default Accountsstealth · persistence · privilege escalation · initial access75 % - Impacto secundario
T1499.004Application or System Exploitationimpact70 %
Vulnerabilidad de aplicación web (Dashy) accesible remotamente (AV:N/AC:L/PR:N) que permite modificar config.yaml sin autenticación adecuada (CWE-287/284), causando corrupción de configuración y potencial DoS; acceso elevado como admin.
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-15, CWE-284, CWE-287, CWE-602
Referencias
JSON original (NVD)
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{
"id": "CVE-2026-46485",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-46485",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-07-20T14:38:12.240386Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.2,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 4.2,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "lissy93",
"product": "dashy",
"versions": [
{
"status": "affected",
"version": "< 4.0.8"
}
]
}
]
}
],
"published": "2026-07-15T19:17:17.657",
"references": [
{
"url": "https://github.com/lissy93/dashy/releases/tag/4.0.8",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/lissy93/dashy/security/advisories/GHSA-vjj9-fmvr-6h3p",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/lissy93/dashy/security/advisories/GHSA-vjj9-fmvr-6h3p",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-15"
},
{
"lang": "en",
"value": "CWE-284"
},
{
"lang": "en",
"value": "CWE-287"
},
{
"lang": "en",
"value": "CWE-602"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Dashy is a self-hostable personal dashboard. Prior to 4.0.8, Dashy deployments using OIDC can allow unauthenticated users or non-admin authenticated users to write changes to the main config.yaml through the config-saving functionality despite configured permissions, allowing unauthorized modification of dashboard configuration and potential service disruption. This issue is fixed in version 4.0.8."
}
],
"lastModified": "2026-07-20T16:17:01.520",
"sourceIdentifier": "security-advisories@github.com"
}