CVE-2025-54419
CRITICAL EPSS 27.6%
Published Jul 28, 202511mo ago · Modified Jun 17, 20261w ago
10.0 CVSS 3.1
Published Jul 28, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability None
Threat Intelligence
EPSS Exploit Probability
27.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 2
CWE-287 Improper Authentication Authentication
CWE-347
References 3
- github.com https://github.com/node-saml/node-saml/commit/31ead9411ebc3e2385086fa9149b6c17732bca10
- github.com https://github.com/node-saml/node-saml/releases/tag/v5.1.0
- github.com https://github.com/node-saml/node-saml/security/advisories/GHSA-4mxg-3p6v-xgq3
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.