by Kastro
Paper/Archive/CVE-2025-54369

CVE-2025-54369

node-saml node-saml — Node-SAML SAML Authentication Bypass

EPSS 0.5%CVSS 9.3
critical.is priorityof 100
37
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 45.8.458 × 209.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
node-saml< 5.1.0–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refgithub.com/node-saml/node-saml/security/advisories/GHSA-m837-g268-mmv7refgithub.com/node-saml/node-saml/commit/31ead9411ebc3e2385086fa9149b6c17732bca10refgithub.com/node-saml/node-saml/releases/tag/v5.1.0