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CVE

CWE

Training

CVE-2025-54419

Published: Jul 28, 2025

Modified: Jul 28, 2025

PUBLISHED

CVSS v3.1

10.0

CRITICAL

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.

Vendor	Product	Versions
node-saml	node-saml	affected `= 5.0.1`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

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

x_refsource_CONFIRM

https://github.com/node-saml/node-saml/commit/31ead9411ebc3e2385086fa9149b6c17732bca10

x_refsource_MISC

https://github.com/node-saml/node-saml/releases/tag/v5.1.0

x_refsource_MISC

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