CVE-2025-54419

A SAML library not dependent on any frameworks that runs in Node. In version 5.0.1, 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. To conduct the attack an attacker would need a validly signed document from the identity provider (IdP). This is fixed in version 5.1.0.

CVSS v3 10.0 CRITICAL

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/node-saml/node-saml/commit/31ead9411ebc3e2385086fa9149b6c17732bca10
https://github.com/node-saml/node-saml/releases/tag/v5.1.0
https://github.com/node-saml/node-saml/security/advisories/GHSA-4mxg-3p6v-xgq3

Configurations

No configuration.

History

No history.

Information

Published : 2025-07-28 20:17

Updated : 2025-07-29 14:14

NVD link : CVE-2025-54419

Mitre link : CVE-2025-54419

CVE.ORG link : CVE-2025-54419

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

CWE-347

Improper Verification of Cryptographic Signature

{"id": "CVE-2025-54419", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 10.0, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.8, "exploitabilityScore": 3.9}]}, "published": "2025-07-28T20:17:48.403", "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-4mxg-3p6v-xgq3", "source": "[email protected]"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-347"}]}], "descriptions": [{"lang": "en", "value": "A SAML library not dependent on any frameworks that runs in Node. In version 5.0.1, 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. To conduct the attack an attacker would need a validly signed document from the identity provider (IdP). This is fixed in version 5.1.0."}, {"lang": "es", "value": "Una librer\u00eda SAML independiente de ning\u00fan framework que se ejecuta en Node. En la versi\u00f3n 5.0.1, Node-SAML carga la aserci\u00f3n del documento de respuesta original (sin firmar). Esto difiere de las partes que se verifican al comprobar la firma. Esto permite a un atacante modificar los detalles de autenticaci\u00f3n dentro de una aserci\u00f3n SAML v\u00e1lida. Por ejemplo, en un ataque es posible eliminar cualquier car\u00e1cter del nombre de usuario de la aserci\u00f3n SAML. Para llevar a cabo el ataque, un atacante necesitar\u00eda un documento firmado v\u00e1lidamente por el proveedor de identidad (IdP). Esto se solucion\u00f3 en la versi\u00f3n 5.1.0."}], "lastModified": "2025-07-29T14:14:29.590", "sourceIdentifier": "[email protected]"}