CVE-2025-54369
Full vulnerability record from the local CVENow database.
Description
Node-SAML is a SAML library not dependent on any frameworks that runs in Node. In versions 5.0.1 and below, Node-SAML loads the assertion from the (unsigned) original response document. This is different than the parts that are verified when checking signature. This allows an attacker to modify authentication details within a valid SAML assertion. For example, in one attack it is possible to remove any character from the SAML assertion username. This issue is fixed in version 5.1.0.
Severity
CRITICAL
CVSS score
9.3
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2025-07-24 23:15:26.790000
Last modified
2026-11-07 18:10:00.200000
View original CVE JSON
{
"id": "CVE-2025-54369",
"sourceIdentifier": "[email protected]",
"published": "2025-07-24T23:15:26.790",
"lastModified": "2026-11-07T18:10:00.200",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Node-SAML is a SAML library not dependent on any frameworks that runs in Node. In versions 5.0.1 and below, Node-SAML loads the assertion from the (unsigned) original response document. This is different than the parts that are verified when checking signature. This allows an attacker to modify authentication details within a valid SAML assertion. For example, in one attack it is possible to remove any character from the SAML assertion username. This issue is fixed in version 5.1.0."
},
{
"lang": "es",
"value": "Node-SAML es una biblioteca SAML no dependiente de ningún framework que se ejecuta en Node. En las versiones 5.0.1 e inferiores, Node-SAML carga la aserción del documento de respuesta original (sin firmar). Esto es diferente de las partes que se verifican al comprobar la firma. Esto permite a un atacante modificar los detalles de autenticación dentro de una aserción SAML válida. Por ejemplo, en un ataque es posible eliminar cualquier carácter del nombre de usuario de la aserción SAML. Este problema está solucionado en la versión 5.1.0."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "node-saml",
"product": "node-saml",
"versions": [
{
"version": "< 5.1.0",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/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",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"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"
}
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-12-15T14:55:48.902160Z",
"id": "CVE-2025-54369",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-87"
},
{
"lang": "en",
"value": "CWE-347"
}
]
}
],
"references": [
{
"url": "https://github.com/node-saml/node-saml/commit/31ead9411ebc3e2385086fa9149b6c17732bca10",
"source": "[email protected]"
},
{
"url": "https://github.com/node-saml/node-saml/releases/tag/v5.1.0",
"source": "[email protected]"
},
{
"url": "https://github.com/node-saml/node-saml/security/advisories/GHSA-m837-g268-mmv7",
"source": "[email protected]"
}
]
}