CVE-2026-82472
Documenso before 2.13.0 accepts PDF file uploads on the /api/files/upload-pdf endpoint without requiring authentication, session tokens, or API credentials. Unauthenticated attackers can upload arbitrary PDF files indefinitely to exhaust storage resources or fill the database with unlinked document records.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 8.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.76%
- Percentil entre todas las CVEs puntuadas: 54
- 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
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1499.004Application or System Exploitationimpact85 % - Impacto secundario
T1078Valid Accountsstealth · persistence · privilege escalation · initial access70 %
Endpoint /api/files/upload-pdf expuesto sin autenticación en red (AV:N, PR:N, UI:N). Impacto: DoS por agotamiento de almacenamiento (VA:H) e inyección de registros no autenticados (T1078 como acceso no autorizado al sistema).
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-306
Referencias
- https://github.com/documenso/documenso
- https://github.com/documenso/documenso/blob/v2.12.0/apps/remix/server/api/files/files.ts
- https://github.com/documenso/documenso/commit/4f346d3c2d5264f221e4d787e162f16051e44114
- https://www.vulncheck.com/advisories/documenso-before-2.13.0-unauthenticated-file-upload-via-api-files-upload-pdf
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-82472",
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"metrics": {
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"options": [
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"exploitation": "none"
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},
{
"technicalImpact": "partial"
}
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"version": "2.0.3",
"timestamp": "2026-08-31T16:33:59.893494Z"
}
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
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"cvssMetricV40": [
{
"type": "Secondary",
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"version": "4.0",
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"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
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"vulnIntegrityImpact": "NONE",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "NONE",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
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"affected": [
{
"source": "disclosure@vulncheck.com",
"affectedData": [
{
"vendor": "documenso",
"product": "documenso",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2.13.0",
"versionType": "semver"
}
],
"packageURL": "pkg:github/documenso/documenso",
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-08-29T17:17:59.623",
"references": [
{
"url": "https://github.com/documenso/documenso",
"source": "disclosure@vulncheck.com"
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{
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{
"url": "https://github.com/documenso/documenso/commit/4f346d3c2d5264f221e4d787e162f16051e44114",
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{
"url": "https://www.vulncheck.com/advisories/documenso-before-2.13.0-unauthenticated-file-upload-via-api-files-upload-pdf",
"source": "disclosure@vulncheck.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
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"type": "Secondary",
"source": "disclosure@vulncheck.com",
"description": [
{
"lang": "en",
"value": "CWE-306"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Documenso before 2.13.0 accepts PDF file uploads on the /api/files/upload-pdf endpoint without requiring authentication, session tokens, or API credentials. Unauthenticated attackers can upload arbitrary PDF files indefinitely to exhaust storage resources or fill the database with unlinked document records."
}
],
"lastModified": "2026-09-24T21:08:55.030",
"sourceIdentifier": "disclosure@vulncheck.com"
}