Security Advisory

CVE-2025-54369

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2025-12-12 23:03:52

Last updated 2026-05-07 20:46:21

Assigner GitHub_M

State PUBLISHED

Description

Node-SAML is a SAML library not dependent on any frameworks that runs in Node. In versions 5.0.1 and below, 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. This issue is fixed in version 5.1.0.

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