CVE-2025-54419

CRITICAL

10.0

Description

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.

CVE Details

CVSS v3.1 Score10.0

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published7/28/2025

Last Modified7/29/2025

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-287CWE-347

References

https://github.com/node-saml/node-saml/commit/31ead9411ebc3e2385086fa9149b6c17732bca10(security-advisories@github.com)

https://github.com/node-saml/node-saml/releases/tag/v5.1.0(security-advisories@github.com)

https://github.com/node-saml/node-saml/security/advisories/GHSA-4mxg-3p6v-xgq3(security-advisories@github.com)

IOC Correlations

No correlations recorded

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