CVE-2026-73487
Full vulnerability record from the local CVENow database.
Description
Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions like pd.read_json() to exfiltrate datasets, perform SSRF against internal services, or achieve code execution through the unauthenticated prediction API.
Severity
CRITICAL
CVSS score
9.0
(v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-08-13 12:17:24.083000
Last modified
2026-10-24 15:10:00.190000
View original CVE JSON
{
"id": "CVE-2026-73487",
"sourceIdentifier": "[email protected]",
"published": "2026-08-13T12:17:24.083",
"lastModified": "2026-10-24T15:10:00.190",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Flowise before 3.1.3 contains a regex-based Python code validator bypass in CSV and Airtable Agent nodes that allows unauthenticated attackers to inject malicious code via prompt injection. Attackers can exploit unblocked pandas functions like pd.read_json() to exfiltrate datasets, perform SSRF against internal services, or achieve code execution through the unauthenticated prediction API."
},
{
"lang": "es",
"value": "Flowise anterior a la versión 3.1.3 contiene una omisión del validador de código Python basado en expresiones regulares en los nodos de agente CSV y Airtable que permite a atacantes no autenticados inyectar código malicioso mediante inyección de prompts. Los atacantes pueden explotar funciones de pandas no bloqueadas como pd.read_json() para exfiltrar conjuntos de datos, realizar SSRF contra servicios internos o lograr la ejecución de código a través de la API de predicción no autenticada."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "FlowiseAI",
"product": "Flowise",
"defaultStatus": "unaffected",
"packageURL": "pkg:npm/flowise",
"versions": [
{
"version": "0",
"lessThan": "3.1.3",
"versionType": "semver",
"status": "affected"
},
{
"version": "3.1.3",
"versionType": "semver",
"status": "unaffected"
}
]
},
{
"vendor": "FlowiseAI",
"product": "Flowise",
"defaultStatus": "unaffected",
"packageURL": "pkg:npm/flowise-components",
"versions": [
{
"version": "0",
"lessThan": "3.1.3",
"versionType": "semver",
"status": "affected"
},
{
"version": "3.1.3",
"versionType": "semver",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/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",
"baseScore": 9.0,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "HIGH",
"subIntegrityImpact": "LOW",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-08-14T22:26:23.902795Z",
"id": "CVE-2026-73487",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-94"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*",
"versionEndIncluding": "3.1.4",
"matchCriteriaId": "9B13DD07-EC62-44CC-8602-EEAE7960C9B3"
}
]
}
]
}
],
"references": [
{
"url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-w7x8-q2gp-5cgg",
"source": "[email protected]",
"tags": [
"Exploit",
"Mitigation",
"Vendor Advisory"
]
},
{
"url": "https://www.vulncheck.com/advisories/flowise-before-prompt-injection-rce-via-csv-agent",
"source": "[email protected]",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-w7x8-q2gp-5cgg",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"Exploit",
"Mitigation",
"Vendor Advisory"
]
}
]
}