CVE-2025-54369 – node-saml

Package

Manager: npm
Name: node-saml
Vulnerable Version: >=0 <=3.1.2

Severity

Level: Critical

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:H/RL:U/RC:R

CVSS v4.0: 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

EPSS: N/A pctlN/A

Details

Node-SAML SAML Authentication Bypass 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). In fixing this we upgraded xml-crypto to v6.1.2 and made sure to process the SAML assertions from only verified/authenticated contents. This will prevent future variants from coming up.

Metadata

Created: 2025-07-25T14:08:50Z
Modified: 2025-07-25T14:08:50Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/07/GHSA-m837-g268-mmv7/GHSA-m837-g268-mmv7.json
CWE IDs: ["CWE-287", "CWE-347"]
Alternative ID: GHSA-m837-g268-mmv7
Finding: F006
Auto approve: 1