CVE-2025-54369
CVE-2025-54369 · Node-SAML SAML Authentication Bypass
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 9.3 · Critical · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
node-saml
- Versions
- < 5.1.0: Affected
No fix published
node-saml npm
- Affected ranges
- SEMVER: ≤ 3.1.2
No fix published
@node-saml/node-saml npm
- Affected ranges
- SEMVER: < 5.1.0
Update to 5.1.0