p PatchFirst

CVE-2025-54419

CVE-2025-54419 · Node-SAML Contains SAML Signature Verification Vulnerability

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 10.0 · Critical · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

Original sources

Check your server →