CVE-2026-58661
Estado: AnalizadaMedia (5.3)—
n8n before 2.28.0 (and before 1.123.58 on the 1.x branch) contains a disk space exhaustion vulnerability in the data-table file upload endpoint. The per-request quota check does not account for files already written to the shared temporary directory, allowing an authenticated user to repeatedly upload files that accumulate on disk until the periodic cleanup runs, potentially exhausting available disk space on the host.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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: 5.3
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.39%
- Percentil entre todas las CVEs puntuadas: 30
- 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).
Tecnologías afectadas (1)
CWE
- CWE-770
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-58661",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-58661",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-07-10T16:43:17.458913Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.3,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 1.4,
"exploitabilityScore": 2.8
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "disclosure@vulncheck.com",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 5.3,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"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"
}
}
]
},
"affected": [
{
"source": "disclosure@vulncheck.com",
"affectedData": [
{
"vendor": "n8n",
"product": "n8n",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "2.28.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "2.28.0",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/n8n",
"defaultStatus": "unaffected"
},
{
"vendor": "n8n",
"product": "n8n",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.123.58",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "1.123.58",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/n8n",
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-07-10T15:16:47.987",
"references": [
{
"url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-w867-jm58-p9pv",
"tags": [
"Mitigation",
"Vendor Advisory"
],
"source": "disclosure@vulncheck.com"
},
{
"url": "https://www.vulncheck.com/advisories/n8n-disk-space-exhaustion-via-data-table-file-upload-endpoint",
"tags": [
"Third Party Advisory"
],
"source": "disclosure@vulncheck.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "disclosure@vulncheck.com",
"description": [
{
"lang": "en",
"value": "CWE-770"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "n8n before 2.28.0 (and before 1.123.58 on the 1.x branch) contains a disk space exhaustion vulnerability in the data-table file upload endpoint. The per-request quota check does not account for files already written to the shared temporary directory, allowing an authenticated user to repeatedly upload files that accumulate on disk until the periodic cleanup runs, potentially exhausting available disk space on the host."
}
],
"lastModified": "2026-07-13T16:57:20.323",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*",
"vulnerable": true,
"matchCriteriaId": "C0D5E843-3923-4473-B810-8B7DAAED1640",
"versionEndExcluding": "1.123.58"
},
{
"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*",
"vulnerable": true,
"matchCriteriaId": "46606938-85AC-4EFB-ACF1-D4928DB1DE79",
"versionEndExcluding": "1.123.58"
},
{
"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:community:node.js:*:*",
"vulnerable": true,
"matchCriteriaId": "66F12A64-36CD-426C-953C-1241930B85F1",
"versionEndExcluding": "2.28.0",
"versionStartIncluding": "2.0.0"
},
{
"criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*",
"vulnerable": true,
"matchCriteriaId": "FB416B55-F149-4B73-A880-383334CB89E4",
"versionEndExcluding": "2.28.0",
"versionStartIncluding": "2.0.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "disclosure@vulncheck.com"
}